When using alternative MOODLE_REPO, Behat test does not seem detect features

[kabalin]

When using custom MOODLE_REPO, for some strange reason Behat does not find test scenarios.

Patch to demonstrate the issue, it is using my fork of Moodle, main branch is identical to upstream: kabalin@0a7dd94

CI run: https://github.com/kabalin/moodle-plugin-ci/actions/runs/16098892466/job/45425447800#step:7:330

This is not the case when test is run on main branch using default Moodle repo:

https://github.com/kabalin/moodle-plugin-ci/actions/runs/16098928873/job/45425528106#step:7:360