i18n.py applies patch after derive_settings method

[anfbermudezme]

The template at tutor/templates/build/openedx/settings/partials/i18n.py#L16 applies {{ patch("openedx-common-i18n-settings") }} after derive_settings(name). This causes derived values in Studio (e.g., FRONTEND_REGISTER_URL = LMS_ROOT_URL + "/register") to be evaluated before LMS_ROOT_URL can be set by the patch. During image build, the CMS translations step fails:

RUN ./manage.py cms --settings=tutor.i18n compile_xblock_translations
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
# in cms/envs/common.py when LMS_ROOT_URL is None

There’s already a fix in the release branch: #1256, but I suggest reordering the patch in tagged versions too, since the impact goes beyond image builds to other workflows that rely on derived settings.

[ahmed-arb]

The fix you mentioned is in the main branch because the upstream change that causes this error is destined for Ulmo. Tutor's corresponding version v21 should have this fix.