fix(pinia-orm): Model original data is overwritten by different namspace models with same ID

[petrmifek]

🔗 Linked issue

resolves #1953

📚 Description

The original static property in the Model class stores original states using only the model's ID as the key, causing different model types to overwrite each other's original states when they share the same ID.

This PR is separating/namespacing the original states by model entity

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.48%. Comparing base (17d5f20) to head (e4659cf).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1954   +/-   ##
=======================================
  Coverage   99.48%   99.48%           
=======================================
  Files          86       86           
  Lines        3123     3124    +1     
  Branches      526      526           
=======================================
+ Hits         3107     3108    +1     
  Misses         14       14           
  Partials        2        2           

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[CodeDredd]

@petrmifek Nice PR. 👍 Only linting is missing and i can merge it 😉

[petrmifek]

Ah, missed that, sorry. Would this work?