Wikimedia Bugzilla is closed!

I have development wiki running at
http://artmuseum.wiki.uniyar.ac.ru/ru/Special:Version
MW 1.22wmf1, SMW 1.8.0.4

It is a manual upgrade of extremly old MW 1.10.0 / SMW 0.7 wiki. I didn't use update.php, but exported xml dump with --current then imported into new clean 1.22wmf1 wiki, imported images, regenerated links, maintenance/SMW_setup.php, maintenance/SMW_refreshData.php
SMW_refreshData.php seems to workef fine. Can re-execute if needed.

Old-style parser hook <ask> date property related queries worked fine at old wiki, however they are producing syntax errors at new wiki. I am trying to convert old style <ask> to functional {{#ask:}}. However, date-related query return no results.

What I have tried:
1. Changed [[Дата окончания:=>now]] to [[Дата окончания::>now]]
2. Implicitely specified printouts ?Дата окончания for templates.
3. Suspecting that 'now' and 'now - 7 day' does not work anymore I tried to input direct local date values (maybe will generate them via magic words automatically).

Nothing works, query returns empty set. Then I used Special:Ask to play with ask parameters. Specifying list of categories and property exists [[Дата окончания::+]] works fine:
%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A%2B]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes">http://artmuseum.wiki.uniyar.ac.ru/index.php?title=%D0%A1%D0%BB%D1%83%D0%B6%D0%B5%D0%B1%D0%BD%D0%B0%D1%8F%3AAsk&q=[[%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A%2B]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes

Specifying single date property equals value [[Дата окончания::=31.07.2012]] also works fine:
%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A31.07.2012]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes">http://artmuseum.wiki.uniyar.ac.ru/index.php?title=%D0%A1%D0%BB%D1%83%D0%B6%D0%B5%D0%B1%D0%BD%D0%B0%D1%8F%3AAsk&q=[[%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A31.07.2012]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes

Querying date properties greater or equal to specified value [[Дата окончания::>31.07.2012]] fails:
%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A%3E31.07.2012]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes">http://artmuseum.wiki.uniyar.ac.ru/index.php?title=%D0%A1%D0%BB%D1%83%D0%B6%D0%B5%D0%B1%D0%BD%D0%B0%D1%8F%3AAsk&q=[[%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F%3A%D0%92%D1%8B%D1%81%D1%82%D0%B0%D0%B2%D0%BA%D0%B8%7C|%D0%9A%D0%BE%D0%BD%D1%84%D0%B5%D1%80%D0%B5%D0%BD%D1%86%D0%B8%D0%B8%7C|%D0%A4%D0%B5%D1%81%D1%82%D0%B8%D0%B2%D0%B0%D0%BB%D0%B8]]%0D%0A[[%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%3A%3A%3E31.07.2012]]&po=%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0%0D%0A%3F%D0%94%D0%B0%D1%82%D0%B0+%D0%BE%D0%BA%D0%BE%D0%BD%D1%87%D0%B0%D0%BD%D0%B8%D1%8F%0D%0A&eq=yes&p[format]=broadtable&sort[0]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&order[0]=ASC&sort_num=&order_num=ASC&p[limit]=&p[offset]=&p[link]=all&p[sort]=%D0%94%D0%B0%D1%82%D0%B0+%D0%BD%D0%B0%D1%87%D0%B0%D0%BB%D0%B0&p[order][desc]=1&p[headers]=show&p[mainlabel]=&p[intro]=&p[outro]=&p[searchlabel]=%E2%80%A6+%D1%81%D0%BB%D0%B5%D0%B4%D1%83%D1%8E%D1%89%D0%B8%D0%B5+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B&p[default]=&p[class]=sortable+wikitable+smwtable&eq=yes

Note that for [[Дата окончания::>31.07.2012]] it returned
31.07.2012 (which is correct)
and 31.08.2008 (which is wrong).

The extension itself is quite large and I haven't get to it for a long time. Can anyone clarify whether that is syntax error or that's real bug of querying engine?

I run via MySQL, no external triplestore and LocalSettings.php config is really simple:
include_once( "$IP/extensions/SemanticMediaWiki/SemanticMediaWiki.php" );
enableSemantics('artmuseum.wiki.uniyar.ac.ru');