Revert "behave more like dataclasses when creating them"

Revert "behave more like dataclasses when creating them"

This reverts commit be4e3e675e7f69a2e728af2aa814524173d7a66c.

Reason for revert: everything has passed very well on jenkins, however GH actions is showing the two new test_cpython_142214 tests from 133f14dabed44f7398039 suddenly failing across hundreds of scenarios.  given the risk of this change since dataclasses are very weird, need to see what this is about.   im suspecting point release changes in older pythons like 3.10, 3.11, etc. which seems a bit ominous.

Change-Id: I7c98085b5e3482cad3291194e2ab1f8018db2eff