bug#38219: Error on leaving Ediff after killing vital buffer

[martin rudalics]

> Can the same be said about read-from-minibuffer?
> Shouldn't read-from-minibuffer mangle 'this-command'?
> What it some command wants to check if 'this-command'
> is 'exit-minibuffer' afterwards?  Shouldn't this change better
> to be localized to callers in ediff, instead of adding such hack?

You could argue that 'ediff' already breaks

(defalias 'y-or-n-p 'yes-or-no-p)

They would probably say that consulting 'this-command' after a
'y-or-n-p' "has worked ever since".  Guess whose argument wins.

martin