fix

Author: wangliang181230

apps/application/flow/compare/is_not_null_compare.py

@@ -18,4 +18,7 @@ def support(self, node_id, fields: List[str], source_value, compare, target_valu
             return True
 
     def compare(self, source_value, compare, target_value):
-        return source_value is not None and len(source_value) > 0
+        try:
+            return source_value is not None and len(source_value) > 0
+        except Exception:
+            return source_value is not None

apps/application/flow/compare/is_null_compare.py

@@ -20,5 +20,5 @@ def support(self, node_id, fields: List[str], source_value, compare, target_valu
     def compare(self, source_value, compare, target_value):
         try:
             return source_value is None or len(source_value) == 0
-        except Exception as e:
-            return False
+        except Exception:
+            return source_value is None