Merge branch 'rr/rebase-checkout-reflog'

Invocations of "git checkout" used internally by "git rebase" were counted as "checkout", and affected later "git checkout -" to the the user to an unexpected place. * rr/rebase-checkout-reflog: checkout: respect GIT_REFLOG_ACTION status: do not depend on rebase reflog messages t/t2021-checkout-last: "checkout -" should work after a rebase finishes wt-status: remove unused field in grab_1st_switch_cbdata t7512: test "detached from" as well