https://test.wikipedia.org/wiki/Special:Log/renameuser
See this entry: 05:17, 12 October 2015 Steinsplitter (talk | contribs | block) renamed user درفش کاویانی (0 edits) to Darafsh (per request)
The درفش کاویانی (0 edits) portion should say (0 edits) instead of what it is saying now.
The previous rename log entry - 15:14, 9 October 2015 K6ka (talk | contribs | block) renamed user Войтович Роман Романович (0 edits) to DigitalRebel78 (per request)
...appears to be correct. It looks like the log is having trouble with usernames that use this lettering. Even pasting them into this form creates problems. It messes up the ability to delete words and letters that surround it, as well as add things (the carrot cursor jumps randomly, it seems). I think something similar may be happening with the logs too.