Last modified: 2012-06-09 19:58:33 UTC
SMW 1.7.1: If user set a property which name is equal to name of any type name, such a property reported as special property, for example: [[Page::Xxx]] [[String::qwerty]] {{#set:Number=123}} Browsing page properties, all these properties are reported as special.
You can see the bug in practice here: http://www.icp.uni-stuttgart.de/~icp/Property:Date
It is debatable if this is a bug, but current behaviour is intentional where a special property declaration takes precedence over an user defined declaration (if their share the same name) therefore I'd like to close this one.