Edit: It is browser-independent, it's the error of the webpage. If i send in a new comment, then it looks like this: http://oscomp.hu/depot/pagure_io_icons_iceweasel.png And if i hover over them: http://oscomp.hu/depot/pagure_io_icons_hover_iceweasel.png It seems the reply covers the edit button. After a full reload, it is ok.
Test comment in IceWeasel-UXP.
Test comment in PaleMoon.
Test comment in Ungoogled Chromium.
Closing as this bug is no fault of the application. Text rendering glitch browser independent.
Metadata Update from @g4jc: - Issue status updated to: Closed (was: Open)