Capabilities/moodle/role:safeoverride
From MoodleDocs
Moodle1.9
- This allows a user to override capabilities that do not have major risks attached to them. Higher risk capabilities are locked (greyed out) on the override permissions page.

Overriding permissions with higher risk capabilities locked - This capability is included in Moodle 1.9.3 onwards. It is not set for any of the default roles.
See also
- Override permissions
- Allow role overrides
- The capability moodle/role:override