log: add exhaustive tests for pattern style options & config

diff --git a/submodule.c b/submodule.c
index 5615d7392efaf18816ba2a6910a224df581be72e..d3299e29c0855b8503f444f659e2b24bba8ecb1f 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -1474,8 +1474,7 @@ int submodule_move_head(const char *path,
                        cp1.no_stdin = 1;
                        cp1.dir = path;
 
-                       argv_array_pushl(&cp1.args, "update-ref", "HEAD",
-                                        new ? new : EMPTY_TREE_SHA1_HEX, NULL);
+                       argv_array_pushl(&cp1.args, "update-ref", "HEAD", new, NULL);
 
                        if (run_command(&cp1)) {
                                ret = -1;