add check for MappingType on sonata_type_admin FieldType
add check for MappingType on sonata_type_admin FieldType

rschumacher/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,rmzamora/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,sonata-project/SonataDoctrineORMAdminBundle,rschumacher/SonataDoctrineORMAdminBundle,rmzamora/SonataDoctrineORMAdminBundle,aurelien-vtech/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,rmzamora/SonataDoctrineORMAdminBundle,pulzarraider/SonataDoctrineORMAdminBundle,nlzet/SonataDoctrineORMAdminBundle