builtin-merge: show user-friendly error messages for fast-forward too.

diff --git a/mktag.c b/mktag.c
index a609e3ebd106ed985fa2065dc4af6565e5a379a6..a3b4270c18ea78fa36f7243de5a9e05e2066e030 100644 (file)
--- a/mktag.c
+++ b/mktag.c
@@ -19,16 +19,17 @@
 /*
  * We refuse to tag something we can't verify. Just because.
  */
-static int verify_object(unsigned char *sha1, const char *expected_type)
+static int verify_object(const unsigned char *sha1, const char *expected_type)
 {
        int ret = -1;
        enum object_type type;
        unsigned long size;
-       void *buffer = read_sha1_file(sha1, &type, &size);
+       const unsigned char *repl;
+       void *buffer = read_sha1_file_repl(sha1, &type, &size, &repl);
 
        if (buffer) {
                if (type == type_from_string(expected_type))
-                       ret = check_sha1_signature(sha1, buffer, size, expected_type);
+                       ret = check_sha1_signature(repl, buffer, size, expected_type);
                free(buffer);
        }
        return ret;