fix #8186

Signed-off-by: YunLiu <[email protected]>

Author: KumoLiu

monai/transforms/transform.py

@@ -136,9 +136,7 @@ def apply_transform(
         Union[List[ReturnType], ReturnType]: The return type of `transform` or a list thereof.
     """
     try:
-        if not map_items:
-            return _apply_transform(transform, data, unpack_items, lazy, overrides, log_stats)
-        if isinstance(data, (list, tuple)):
+        if isinstance(data, (list, tuple)) and map_items:
             return [apply_transform(transform, item, map_items, unpack_items, log_stats, lazy, overrides) for item in data]
         return _apply_transform(transform, data, unpack_items, lazy, overrides, log_stats)
     except Exception as e: