kevinjqliu commented on issue #751:
URL: https://github.com/apache/iceberg-python/issues/751#issuecomment-2189740351

   @ndrluis Thanks for the fix. It's passing all the unit tests I've collected 
for this issue. 
   
   I'm still trying to wrap my head around why this works and if this is the 
proper fix. 
   Do you mind adding an explanation, either here or in the PR? 
   
   I thought `deepcopy` should return a different python object (contrasting 
with `copy`), returning `self` breaks the underlying assumption of `deepcopy`.
   
   Here's an example assertion that breaks
   ```
   fixed8 = FixedType(8)
   assert id(fixed8) != id(deepcopy(fixed8))
   ``` 
   
   


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