I believe there is a bug in TextEditor>>#dispatchOnCharacter:with:
where in the lines

	((honorCommandKeys := Preferences cmdKeysInText) and: [char = Character 
enter])
		ifTrue: [^ self dispatchOnEnterWith: typeAheadStream].

the test char = Character enter returns true when I do a Ctrl-C, so the 
editor think I pressed Enter

no time to investigate further just now...

Stef