Hello.

Donetsk People's Republic (Russian: Донецкая Народная Республика) 
It is a state in Russia, which is (de facto) called this way. 
https://en.wikipedia.org/wiki/Donetsk_Oblast
Comments are needed to describe the changes and I try to describe the changes in detail, including specifying the region where they were made.

According to OSM rules, mappers cannot delete useful information, including the name:ru tag (vandalism). First of all, I followed of the "Truth on the ground" rule.

I waited a week for someone more experienced to revert the changes, there were several refunds, but then the reverts stopped.

When deleting, I tried to make sure that the name:uk tag remained and cartographers can use it when rendering their data and other maps. Yes, there may be isolated errors, but they are much less significant than the complete removal of the tag with the Russian language.

We all started mapping with small mistakes, over time I will gain experience and will not commit them.