Reported on translatewiki.net by @Pikne (https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Mobile-frontend-editor-previewing-page/et)
Open:
http://en.m.wikipedia.beta.wmflabs.org/wiki/Seven_Sages_of_Greece?uselang=et#/editor/0
The order of "Editing $1" is changed to "$1 Editing", which conflicts with our truncated text implementation and the "Editing" part is moved to the right side of the header. The expected result is like any other page, e.g. the german one ("Editing" on the left side):
http://en.m.wikipedia.beta.wmflabs.org/wiki/Seven_Sages_of_Greece?uselang=de#/editor/0