About [[MediaWiki:Mobile-frontend-editor-previewing-page/et]]
Fragment of a discussion from Translating talk:MediaWiki
The change to fix this problem was merged yesterday. It will take some time to sync translatewiki.net's en.json, and after that you should be able to convert et too :)
Editing title looks good now. Thank you.
MediaWiki:Mobile-frontend-editor-previewing-page/en would also benefit from the same sort of change.
Sorry for my late reply, i forget this topic :( I created a task for me and will do this asap, see phabricator:T98840.