Commits on Dec 4, 2023

1. cqlengine: Remove deepcopy on UserType deserialization …

   This change makes it so newly instanced UserType during deserialization
   isn't immediately copied by deepcopy, which could cause huge slowdown if
   that UserType contains a lot of data or nested UserTypes, in which case the
   deepcopy calls would cascade as each to_python call would eventually clone
   parts of source object. As there isn't a lot of information on why this
   deepcopy is here in the first place this change could potentially break
   something. Running integration tests against this commit does not produce
   regressions, so this call looks safe to remove, but I'm leaving this
   warning here for the future reference.
   
   Issue: scylladb#152

   

   k0machi committed Dec 4, 2023
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