It makes no sense to delete a reference that is already known not to
exist.
Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
Reviewed-by: Stefan Beller <sbel...@google.com>
---
refs.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/refs.c b/refs.c
index b9cf284..d5bfd11 100644
--- a/refs.c
+++ b/refs.c
@@ -3702,6 +3702,8 @@ int ref_transaction_delete(struct ref_transaction
*transaction,
unsigned int flags, const char *msg,
struct strbuf *err)
{
+ if (old_sha1 && is_null_sha1(old_sha1))
+ die("BUG: delete called with old_sha1 set to zeros");
return ref_transaction_update(transaction, refname,
null_sha1, old_sha1,
flags, msg, err);
--
2.1.4
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