The keybindings in edit mode are C-x C-s to complete the edit and C-c C-g to cancel. I suggest changing the defaults to C-c C-c for complete and C-c C-k for cancel. Both are not defined in that mode and free to use.
Rationale
In my perception these are the standards keybindings.
Dired with its very similiar wdired functionality (which is invoked with C-x C-q) uses C-c C-c and C-c C-k.
Confirming or aborting a commit when writing a commit message uses these keybindings
Confirming or closing a org capture uses these keybindings
I changed the keymap accordingly and it works, however in the headline of the edit buffer there is still the hardcoded old keybinding
The keybindings in edit mode are C-x C-s to complete the edit and C-c C-g to cancel. I suggest changing the defaults to C-c C-c for complete and C-c C-k for cancel. Both are not defined in that mode and free to use.
Rationale
In my perception these are the standards keybindings.
I changed the keymap accordingly and it works, however in the headline of the edit buffer there is still the hardcoded old keybinding