Dependent Select going from 2 to 1 option

[rctneil]

Describe the bug

Using a slight tweak to the example of dependent Selects, I find that sometimes values do not save.

Steps to Reproduce

Repro repository: https://github.com/rctneil/avorepro

1. Edit an existing "Companyable" record that has both a "Model" and a "Submodel"
2. Change "Submodel" to not have a value. (eg, only choose a "Model")
3. Save record

Expected behavior & Actual behavior

Companyable should have a "Company", a "Model", and no "Submodel", I find that in reality, none of those changes get saved and they stay as they were pre-editing.

Models and resource files

System configuration

License type:

• Community
• Pro
• Advanced

Are you using Avo monkey patches, overriding views or view components?

• Yes. If so, please post code samples. - Added head view to include custom JS
• No

Screenshots or screen recordings

Additional context

Impact

• High impact (It makes my app un-usable.)
• Medium impact (I'm annoyed, but I'll live.)
• Low impact (It's really a tiny thing that I could live with.)

Urgency

• High urgency (I can't continue development without it.)
• Medium urgency (I found a workaround, but I'd love to have it fixed.)
• Low urgency (It can wait. I just wanted you to know about it.)

[Paul-Bob]

Issue on the custom stimulus logic, closing as completed.