Merge branch 'js/rebase-i-clean-msg-after-fixup-continue'

"git rebase -i" sometimes left intermediate "# This is a combination of N commits" message meant for the human consumption inside an editor in the final result in certain corner cases, which has been fixed. * js/rebase-i-clean-msg-after-fixup-continue: rebase --skip: clean up commit message after a failed fixup/squash sequencer: always commit without editing when asked for rebase -i: Handle "combination of <n> commits" with GETTEXT_POISON rebase -i: demonstrate bugs with fixup!/squash! commit messages