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-rw-r--r--builtin/log.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/builtin/log.c b/builtin/log.c
index 1202eba..83c0b92 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1400,7 +1400,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (check_head) {
unsigned char sha1[20];
const char *ref, *v;
- ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
+ ref = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+ sha1, NULL);
if (ref && skip_prefix(ref, "refs/heads/", &v))
branch_name = xstrdup(v);
else