TCEForms Options e.g. clearCache (groups) is not applied

[JBlocks]

If you set the clearCache option with the YAML config, the "Flush Caches" Icon is not visible in the backend.
It is even not possible to define the specific group "pages" or "all" as described in the TCEFORM documentation

YAML example clear-all-cache-settings.yaml:

permission-sets/Build/Packages/permission-sets-examples/Configuration/PermissionSets/clear-all-cache-settings.yaml

Line 3 in ff82ed1

TCEMAIN:

Original TCEForm config (user.tsconfig) & documentation:

options {
  clearCache {
    all = 1
    pages = 1
  }
}

This should work as well with the YAML syntax.