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-rw-r--r--sha1_name.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 1ba4bc3b68..c5c59ced7f 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -599,6 +599,13 @@ static int peel_onion(const char *name, int len, unsigned char *sha1)
int ret;
struct commit_list *list = NULL;
+ /*
+ * $commit^{/}. Some regex implementation may reject.
+ * We don't need regex anyway. '' pattern always matches.
+ */
+ if (sp[1] == '}')
+ return 0;
+
prefix = xstrndup(sp + 1, name + len - 1 - (sp + 1));
commit_list_insert((struct commit *)o, &list);
ret = get_sha1_oneline(prefix, sha1, list);