Epilog: emacs can be taught that -u is the breezy diff default format anyway so emacs "'diff-switches" should not default to "-u" but to nil.
So my side of the issue (a subset of this bug) has a workaround at least.
Epilog: emacs can be taught that -u is the breezy diff default format anyway so emacs "'diff-switches" should not default to "-u" but to nil.
So my side of the issue (a subset of this bug) has a workaround at least.