Thread:Project:Support desk/1.17, 1.18, 1.19, 1.20, 1.21 Critical bug - lack of translation of page name to suitable encoding - whole site is broken by update scripts (not updated)

I found simple bug with page title encoding for which not allow to migrate mediawiki and there is no workaround for it. No idea how to do migration.


 * 1) 'Strona gÅ‚Ã³wna' from 1.16 is not translated into 1.17 'Strona główna' what is probably required (Polish 'main page').
 * 2) This cause that all page with native characters is broken.
 * 3) Same issue is in 1.17, 1.18, 1.19, 1.20, 1.21 not idea why this critical bug is not solved.
 * 4) I have found any workaround for it - all workarounds was tested except 'iconv' but it will not work since can replace also binary data.
 * 5) http://www.mediawiki.org/wiki/Thread:Project:Support_desk/UTF8_Problem_with_update_from_1.16_to_1.17 (not works)
 * 6) http://www.mediawiki.org/wiki/Manual:Upgrading (no information)
 * 7) http://www.mediawiki.org/wiki/Release_notes/1.17 (no information)
 * 8) http://www.gossamer-threads.com/lists/wiki/mediawiki/244862 (risky conversion)

Why characters is broken after migration form 1.16 into 1.17-1.21? Where it is explained in upgrading or release notes - if explained? Please help with this issue.

My versions before migration:

Nazwa	Wersja MediaWiki	1.16.5 PHP	5.2.17 (isapi) MySQL	5.0.83-community-nt