work around an obnoxious bash "safety feature" on OpenBSD

diff --git a/builtin-checkout.c b/builtin-checkout.c
index d0b1a728cb81e041c685b37014688f0684779132..527781728e0706b906a94ddfb8ee2e8bb06fa05e 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -758,8 +758,10 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                new.name = arg;
                if ((new.commit = lookup_commit_reference_gently(rev, 1))) {
                        setup_branch_path(&new);
-                       if (resolve_ref(new.path, rev, 1, NULL))
-                               new.commit = lookup_commit_reference(rev);
+
+                       if ((check_ref_format(new.path) == CHECK_REF_FORMAT_OK) &&
+                           resolve_ref(new.path, rev, 1, NULL))
+                               ;
                        else
                                new.path = NULL;
                        parse_commit(new.commit);