Hi
this topic is locked
http://www.php-bb.ir/pic/images/84871563835718303862.png
https://www.phpbb.com/community/viewtopic.php?f=70&t=2172673

but still Quote and Edit button is showing to me.
when is i click on one of them i will see:

This topic is locked, you cannot edit posts or make further replies.

i think it is better disappear these buttons when topic is locked.