Example: saving this unit: https://meta.wikimedia.org/w/index.php?title=Translations:FDC_portal/CentralNotice2013-2/2/es&oldid=5347994 ("Comenta cuatro ...") caused this simultaneous edit in the translated page as usual: https://meta.wikimedia.org/w/index.php?diff=5347995&oldid=5347984 (see also the matching edit summary: 'Created page with "Comenta cuatro ...'), which however only changed the preceding unit ("Ayuda al Comité de ...", see diff).
The problem is particularly severe when saving the translation of the last unit, because the translation page will remain incomplete even though the translator has actually provided translations of the entire text.
Example: After https://meta.wikimedia.org/w/index.php?diff=5326458&oldid=5326448 (the most recent edit to that page at the time of filing this bug), the page remained at "98% complete" status and the very last paragraph is still in English ("Wikimedia Sweden has started ..."), even though the translation is at https://meta.wikimedia.org/wiki/Translations:Wikimedia_Highlights,_February_2013/61/da ("Wikimedia Sverige har indledt ..."); this misled me to into not distributing that translation to the corresponding communities yet because I erroneously assumed that the translator was not done yet.
Purging the cache (e.g. https://meta.wikimedia.org/w/index.php?title=Wikimedia_Highlights,_February_2013/da&action=purge ) did not have an effect in resolving the situation (the last unit still displays the English original instead of the existing translation).
Related but less severe bug: T41415: Deleting a translation unit page doesn't remove the corresponding content from the translation page
- T47894: Async and non-atomic saving of page translation edits?
- T49286: Add script to rebuild translatable pages
- T49184: [TUX] Special:Translate should give warning on exit when changes have not been applied yet
- T50971: Completion bar not reflecting actual completion with tux=1
- T53731: After re-marking an updated page for translation, FuzzyBot does not react, or only ports over the previous update
- T55343: Translated page should be reset when translation unit subpage is deleted
- T56915: FuzzyBot is not updating to match new version of source page
- T56579: Incomplete setup of translatable pages: FuzzyBot fails to generate /en subpage etc.
- T63353: FuzzyBot edit wars with itself on some /en pages after a page is marked, for a minute and some edits
- T59541: TranslateRenderJob.php: Oops, this should not happen!