FIX(pipeline): was mixing sub-op attrs while merging

Author: ankostis

graphtik/network.py

@@ -636,17 +636,19 @@ def proc_op(op, parent=None):
         #  to all sub-operations.
         #
         if kw:
+            op_kw = kw.copy()
+
             if node_props:
-                kw["node_props"] = {**op.node_props, **node_props}
+                op_kw["node_props"] = {**op.node_props, **node_props}
 
             if callable(renamer):
 
                 def parent_wrapper(ren_args: RenArgs) -> str:
                     # Provide RenArgs.parent.
                     return renamer(ren_args._replace(parent=parent))
 
-                kw["renamer"] = parent_wrapper
-            op = op.withset(**kw)
+                op_kw["renamer"] = parent_wrapper
+            op = op.withset(**op_kw)
 
         return op