[bct] Fix module key error (Azure#37363)

* fix module key error

* Update breaking_changes_allowlist.py

---------

Co-authored-by: Catalina Peralta <[email protected]>
Co-authored-by: Yuchao Yan <[email protected]>

Author: 3 people

scripts/breaking_changes_checker/breaking_changes_allowlist.py

@@ -6,7 +6,7 @@
 # --------------------------------------------------------------------------------------------
 
 
-RUN_BREAKING_CHANGES_PACKAGES = ["azure-mgmt-*", "azure-ai-contentsafety"]
+RUN_BREAKING_CHANGES_PACKAGES = ["azure-mgmt-*", "azure-ai-contentsafety", "azure-ai-vision-face"]
 
 
 # See Readme for ignore format

scripts/breaking_changes_checker/checkers/method_overloads_checker.py

@@ -17,6 +17,9 @@ class MethodOverloadsChecker:
     def run_check(self, diff, stable_nodes, current_nodes):
         bc_list = []
         for module_name, module in diff.items():
+            # This is a new module, so we won't check for removed overloads
+            if module_name not in stable_nodes:
+                continue
             for class_name, class_components in module.get("class_nodes", {}).items():
                 # We aren't checking for deleted classes in this checker
                 if isinstance(class_name, jsondiff.Symbol):