On odoo.sh

1. I rebuild my main branch, it's a clean database, v15, no installed modules
2. Open editor, then terminal
3. odoo-bin scaffold MODULENAME ~/src/user/
4. I open __manifest__.py in that new module folder and choose from the menu: Odoo > Update current module
5. The comand runs: odoo-bin -u  MODULENAME --stop-after-init
6. WARNING xxxxxx-odoosh-main-4995927 odoo.modules.loading: invalid module names, ignored: MODULENAME 

why? how? 

I tried:

• Starting a fresh branch with this one as its source, same problem
• I tried restarting Odoo, same problem
• I tried Update Module List in Odoo apps interface, same problem
• I moved the folder from ~/src/user to ~/src/odoo/addons, it now works!

I used a previous branch I worked on for custom modules, do the same steps (2-5) and it works just fine!

It seems that ~/src/user as an addon path is ignored somehow in this branch?

What would be the difference between these two branches? I'm very confused here.