I am really surprised about the number of times a KDE application has complained "The key sequence 'XYZ' is ambiguous. Use ...". Probably an application configuration issue, but...

1) The dialog should be a bit more friendly; e.g. ask the user which of the relevant bindings should have priority

2) Changing shortcuts via the "configure shortcuts" menu freuqently doesn't achieve the desired effect (e.g. new bindings only take effect after application restart).

3) Probably handling clashing shortcuts via priorities would be more robust and user-friendly in any case (e.g. try using the "back" button on some keyboards with the file browser plugin for Kate — Kate will either interpret it as change document or produce an "ambiguous" dialog).

In short, the bug is about poor handling of clashing shortcuts, and I'll consider it solved when "The key sequence 'XYZ' is ambiguous..." dialog boxes either no longer show up in KDE applications or can be solved with only a couple of clicks.

Reproducible: Always

Steps to Reproduce:
One case with the kate browser plugin and back/forward keys is mentioned above. Another I have now (may not be reproducible) is the delete message action conflicting with something (delete vs move to trash maybe?) in kmail. I'm sure there are others.