Hey Shawn, thanks for the link!
As far as I understand, this is indeed a mistake of the addon developers:
: Brendon Murphy (meta-androcto). wrote:
the issue was in the submodule registration.
Basically, the workspace filter filters active addons but not the addon’s submodules if they are not correctly enabled/activated and most important, registered..[….} Register your addons and submodules properly and workspace filtering works.
Thanks.