Somehow jEdit understands a single stroke of "C+SEMICOLON" as three copies of it.
(The key "C" is the command key of mac.)
Steps to Reproduce:
Side note:
(1) It seems that even in the text area, the stroke "C+SEMICOLON" seems to be understood as "C+SEMICOLON C+SEMICOLON C+SEMICOLON".
(2) With Karabiner-Elements and other key event viewer, I checked the stroke "C+SEMICOLON" is recognized only once for other application.
jEdit version: 5.7.0
Platform: MacOS (15.7.4(24G517)) with Intel chip
Java version: 25.0.1