Merge branch 'master' into bug/mdm-module-specs
Add missing negative mass assignment spec

[#47720609]

Mdm::ModuleAction's spec was missing that it should NOT allow mass
assignment of module_detail_id, which all the other Mdm::Module* specs
did have.
Merges #13 for really real this time.

@limhoff-r7 snuck in a change and verification steps right as I
merged it the last time. :)