https://github.com/git/git/commit/8b44deebaf02246b40c267c06bf0c74ef71df292

Index: transport-helper.c
--- transport-helper.c.orig
+++ transport-helper.c
@@ -154,8 +154,6 @@ static struct child_process *get_helper(struct transpo
 
 	helper->trace2_child_class = helper->args.v[0]; /* "remote-<name>" */
 
-	helper->clean_on_exit = 1;
-	helper->wait_after_clean = 1;
 	code = start_command(helper);
 	if (code < 0 && errno == ENOENT)
 		die(_("unable to find remote helper for '%s'"), data->name);
