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-rw-r--r--builtin-show-ref.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/builtin-show-ref.c b/builtin-show-ref.c
index 65051d14fd..a323633e29 100644
--- a/builtin-show-ref.c
+++ b/builtin-show-ref.c
@@ -86,6 +86,9 @@ match:
sha1_to_hex(sha1));
if (obj->type == OBJ_TAG) {
obj = deref_tag(obj, refname, 0);
+ if (!obj)
+ die("git-show-ref: bad tag at ref %s (%s)", refname,
+ sha1_to_hex(sha1));
hex = find_unique_abbrev(obj->sha1, abbrev);
printf("%s %s^{}\n", hex, refname);
}