We have released a new version to correct any deprecation warnings & notices caused by PHP 7.3 incompatibility.
MPFT_RelatedUserRole :: offsetExists( Integer $index )
Checks if the numerical array offset exists in the roles selected in the UI. Since this overrides offset-exists the offset test can be made by calling isset directly on the field object.
Note: This method is intended for internal use and should not be called directly.