[BUG]: Model page shows incorrect/missing metadata when models has parameters named *_*

[liunelson]

Describe the bug

I have a model (see below) for which the model page is showing incorrect parameter information.

1. the parameter NPI_mult is shown as NPI only and is missing all its metadata
2. ditto for the parameter vacc_mult
3. all parameters r_* are forced into a single matrix, even though this model is not a product of stratification

This is probably due to the (incorrect) assumptions about IDs with *_*.

The model:
SEIRHD vacc model for LA County t0 = 10_28_2021 (1).json

To Reproduce
Steps to reproduce the behavior:

1. Upload this model
2. Inspect its model page
3. Create a Configure Model operator and plug the model to it
4. Inspect the parameter table to see the lack of values of NPI_mult, vacc_mult and the incorrect matrix for r_*

Screenshots

[mwdchang]

I think we can add additional heuristics to detect cases like this - but at some point these become educated guesses.