can't attache to the ticket filen with long name on native language (like russian).

[slevin@…]

When I try to attache file with long name on russian language I get error:

fx = open(part_file, 'wb')
201	IOError: [Errno 36] File name too long: '/tmp/%D0%94%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%20%D0%BE%20%D0%BF%D1%80%D0%B5%D0%B4%D0%BE%D1%81%D1%82%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B8%20%D1%83%D1%81%D0%BB%D1%83%D0%B3%20%D1%82%D0%B5%D0%BB%D0%B5%D0%BA%D0%BE%D0%BC%D0%BC%D1%83%D0%BD%D0%B8%D0%BA%D0%B0%D1%86%D0%B8%D0%B9.doc'

That is result convert utf-8 filename 182 characters lenght to URL-encode filename, after that new lenght of that file equal 480 characters, that more then limit fo filename lenght for linux system. How it can be fixed?

PS: previously, when we're get the problem with long filename in utf-8 charset wich sended via email, we arehave a long disscussion with author of email2trac plugin here: ​https://subtrac.sara.nl/oss/email2trac/ticket/247, also that ticket contained attachments for reproducing error.

PPS: our environment - gentoo + python 2.5.2 + trac 0.12.2.