Ukrainian backup is done. ;)
It seems that is possible to "repair" this. See User_talk:Caig#The_ToolBox_page_1211. I'll wait a bit longer, if you want to try it out.
This is not the only affected page (I cannot find the others now, but I am sure). Well, I I will repair translation little by little then.
In that case, I'd guess that PageLayout could be similarly affected. They were the first two Help files created.
Yes, it is. Thanks for the pointer.