Fix typo in form check

Author: JeffersonBledsoe

src/collective/volto/formsupport/adapters/post.py

@@ -96,7 +96,7 @@ def get_block_data(self, block_id, global_form_id):
                 return {}
         for id, block in blocks.items():
             # Prefer local forms it they're available, fall back to global form
-            if id != block_id and id != global_form_id and block.get("global_form_id" != global_form_id):
+            if id != block_id and id != global_form_id and block.get("global_form_id") != global_form_id:
                 continue
             block_type = block.get("@type", "")
             if block_type != "form":