Comment # 7 on bug 74342 from gordon@leonde.de

Thanks for your help. I just patched the script according to your suggestion
and will monitor for problems.

FWIW, with the previous change (!UID), everything appeared to work fine. I had
one single occurrence of a conflict where KOrganizer showed me two events with
two different UIDs (nicely  showed me a diff of the two versions and let me
choose to keep one).