Today, after executing a CheckUser check at pt.wikipedia, I noticed that the parenthesis were not being displayed around the user links (USER talk contribs block INFO instead of USER (talk contribs block) INFO). After mentioning this on #wikimedia-tech on IRC, @Krenair said that it was not being displayed at Special:ListUsers too (at en.wikipedia). @Reedy tried to figure out what could have been causing it, but didn't find anything. After I mentioned that on the 6th it was being displayed, he mentioned that it probably is due to something that changed on .25.
Thanks in advance!