model.fit doesn't remove prior samples

[wd60622]

Description

The following workflow is now supported

model.sample_prior_predictive(X)
model.fit(X, y)
assert "prior" in model.idata

Doesn't touch on the "fit_data_group" introduced with #414

Related Issue

• Closes plot_prior_predictive() gives error "RuntimeError: The model hasn't been fit yet, call .fit() first" #410
• Related to Don't erase previous sampling results in ModelBuilder #414

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Modules affected

• MMM
• CLV

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

---

📚 Documentation preview 📚: https://pymc-marketing--741.org.readthedocs.build/en/741/

[wd60622]

So we don't have to check self.model is None all the time...

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.81%. Comparing base (664b5ca) to head (4643bc2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #741      +/-   ##
==========================================
+ Coverage   93.74%   93.81%   +0.07%     
==========================================
  Files          27       27              
  Lines        2828     2828              
==========================================
+ Hits         2651     2653       +2     
+ Misses        177      175       -2     

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[juanitorduz]

🚀