files_read_raw_ref: avoid infinite loop on broken symlinks

diff --git a/submodule.c b/submodule.c
index 1b5cdfb7e784d646c15e59afb2fb43587a8ff8e9..e8258f061ac5726d8001a5b207886b3191745eaa 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -1160,4 +1160,5 @@ void prepare_submodule_repo_env(struct argv_array *out)
                if (strcmp(*var, CONFIG_DATA_ENVIRONMENT))
                        argv_array_push(out, *var);
        }
+       argv_array_push(out, "GIT_DIR=.git");
 }