Wikimedia Bugzilla is closed!

I'm using the api to add a claim to https://www.wikidata.org/wiki/Q1427. I get an error:

RuntimeError: API query error: {u'servedby': u'mw1136', u'error': {u'info': u'*
A length constraint is triggered for language code "mr".\n* There is {{PLURAL:1|
a constraint|constraints}} violation for {{PLURAL:1|description|descriptions}} "
\u0939\u093e \u0907.\u0938. \u0967\u0967\u096d \u0924..." for {{PLURAL:1|languag
e code|language codes}} "mr".\n', u'code': u'save-failed', u'messages': {u'0': {
u'type': u'error', u'name': u'wikibase-error-constraint-violation-description',
u'parameters': [1, u'mr', u'\u0939\u093e \u0907.\u0938. \u0967\u0967\u096d \u092
4...']}, u'html': {u'*': u'<ul><li> A length constraint is triggered for languag
e code "mr".\n</li><li> There is a constraint violation for description "\u0939\
u093e \u0907.\u0938. \u0967\u0967\u096d \u0924..." for language code "mr".\n</li
></ul>\n'}}}}

The 'mr' description looks very long, but it's already there. Why do I get an api error now? Manual save works.