read-cache: fix index corruption with index v4

diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index cabdc55e0933adb09d459a5a0747c718fd2c7d1e..14b6e09b42f1d423307c98275f5b203078b82445 100644 (file)
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -919,9 +919,9 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
  */
 static int head_has_history(void)
 {
-       unsigned char sha1[20];
+       struct object_id oid;
 
-       return !get_sha1("HEAD", sha1);
+       return !get_oid("HEAD", &oid);
 }
 
 static const char *push_to_deploy(unsigned char *sha1,
@@ -1138,7 +1138,7 @@ static const char *update(struct command *cmd, struct shallow_info *si)
                }
                if (ref_transaction_delete(transaction,
                                           namespaced_name,
-                                          old_oid->hash,
+                                          old_oid ? old_oid->hash : NULL,
                                           0, "push", &err)) {
                        rp_error("%s", err.buf);
                        strbuf_release(&err);