Fix bug in switch mixture logp

[ricardoV94]

---

📚 Documentation preview 📚: https://pymc--6765.org.readthedocs.build/en/6765/

[codecov]

Codecov Report

Merging #6765 (2d51d05) into main (261862d) will decrease coverage by 4.33%.
The diff coverage is 88.57%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6765      +/-   ##
==========================================
- Coverage   91.93%   87.61%   -4.33%     
==========================================
  Files          95       95              
  Lines       16125    16134       +9     
==========================================
- Hits        14825    14136     -689     
- Misses       1300     1998     +698     

Impacted Files	Coverage Δ
pymc/logprob/mixture.py	96.33% <ø> (ø)
pymc/logprob/basic.py	96.85% <55.55%> (-3.15%)	⬇️
pymc/logprob/__init__.py	100.00% <100.00%> (ø)
pymc/logprob/scan.py	98.49% <100.00%> (ø)
pymc/model.py	89.91% <100.00%> (ø)
pymc/sampling/mcmc.py	89.88% <100.00%> (+0.06%)	⬆️
pymc/step_methods/compound.py	97.63% <100.00%> (ø)
pymc/testing.py	88.57% <100.00%> (-3.04%)	⬇️

... and 7 files with indirect coverage changes

[larryshamalama]

Well spotted! Thanks @ricardoV94

IIRC, I also think that find_measurable_switch_mixture does not broadcast well (the NoneConst should be more general)

[ricardoV94]

Well spotted! Thanks @ricardoV94

IIRC, I also think that find_measurable_switch_mixture does not broadcast well (the NoneConst should be more general)

Yeah. I am pushing a more general solution in the next couple of days, just wanted to get this fixed already.