Merge branch 'tg/refs-allowed-flags' into maint

API error-proofing which happens to also squelch warnings from GCC.

* tg/refs-allowed-flags:
  refs: strip out not allowed flags from ref_transaction_update

1 files changed, 2 insertions, 0 deletions

diff --git a/refs.c b/refs.c
index ea2b9f84f..41aec6505 100644
--- a/refs.c
+++ b/refs.c
@@ -921,6 +921,8 @@ int ref_transaction_update(struct ref_transaction *transaction,
 		return -1;
 	}
 
+	flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS;
+
 	flags |= (new_sha1 ? REF_HAVE_NEW : 0) | (old_sha1 ? REF_HAVE_OLD : 0);
 
 	ref_transaction_add_update(transaction, refname, flags,