It was necesary because they make this changes in their sourcecode
```patch
@@ -1 +1,2 @@
-XcodeSettings._sdk_path_cache[sdk_root] = self._GetSdkVersionInfoItem(sdk_root, 'Path')
+sdk_path = self._GetSdkVersionInfoItem(sdk_root, 'Path')
+XcodeSettings._sdk_path_cache[sdk_root] = sdk_path
```
which prevent the patch to apply (see build bot output from #25158