submodule--helper: do not borrow absolute_path() result for too long

diff --git a/builtin/branch.c b/builtin/branch.c
index b42e5b6dbc76016ca18e5ddd7ded2af613013eb7..58aa84f1e85212772d15175679e95263eae75123 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -160,7 +160,7 @@ static int branch_merged(int kind, const char *name,
 }
 
 static int check_branch_commit(const char *branchname, const char *refname,
-                              unsigned char *sha1, struct commit *head_rev,
+                              const unsigned char *sha1, struct commit *head_rev,
                               int kinds, int force)
 {
        struct commit *rev = lookup_commit_reference(sha1);
@@ -253,7 +253,8 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
                        continue;
                }
 
-               if (delete_ref(name, sha1, REF_NODEREF)) {
+               if (delete_ref(name, is_null_sha1(sha1) ? NULL : sha1,
+                              REF_NODEREF)) {
                        error(remote_branch
                              ? _("Error deleting remote-tracking branch '%s'")
                              : _("Error deleting branch '%s'"),