Resolves a group's $extends/$ref target (§6.4): it must exist, be a group, and not create a cycle. Then re-checks inherited tokens whose effective type changes in this group (§6.7.3), reporting at the group.
$extends
$ref
Resolves a group's
$extends/$reftarget (§6.4): it must exist, be a group, and not create a cycle. Then re-checks inherited tokens whose effective type changes in this group (§6.7.3), reporting at the group.