t7610: run 'git reset --hard' after each test to clean up

diff --git a/builtin/merge-base.c b/builtin/merge-base.c
index c0d1822eb3ad371b9ab0b830aed2cc2741a978bd..b572a37c2611b2a8c20b1db7edac68623d371a38 100644 (file)
--- a/builtin/merge-base.c
+++ b/builtin/merge-base.c
@@ -173,6 +173,9 @@ static int handle_fork_point(int argc, const char **argv)
        revs.initial = 1;
        for_each_reflog_ent(refname, collect_one_reflog_ent, &revs);
 
+       if (!revs.nr && !get_sha1(refname, sha1))
+               add_one_commit(sha1, &revs);
+
        for (i = 0; i < revs.nr; i++)
                revs.commit[i]->object.flags &= ~TMP_MARK;