Fix incompatibilities with base form class
Fix incompatibilities with base form class

jessedobbelaere/forkcms,jacob-v-dam/forkcms,carakas/forkcms,sumocoders/forkcms,Katrienvh/forkcms,justcarakas/forkcms,carakas/forkcms,jonasdekeukelaere/forkcms,mathiashelin/forkcms,mathiashelin/forkcms,jonasdekeukelaere/forkcms,Katrienvh/forkcms,forkcms/forkcms,riadvice/forkcms,mathiashelin/forkcms,jeroendesloovere/forkcms,DegradationOfMankind/forkcms,forkcms/forkcms,justcarakas/forkcms,jonasdekeukelaere/forkcms,mathiashelin/forkcms,jacob-v-dam/forkcms,sumocoders/forkcms,tommyvdv/forkcms,bartdc/forkcms,sumocoders/forkcms,carakas/forkcms,carakas/forkcms,jacob-v-dam/forkcms,jessedobbelaere/forkcms,jacob-v-dam/forkcms,Katrienvh/forkcms,bartdc/forkcms,jonasdekeukelaere/forkcms,forkcms/forkcms,jessedobbelaere/forkcms,tommyvdv/forkcms,sumocoders/forkcms,jeroendesloovere/forkcms,bartdc/forkcms,Katrienvh/forkcms,sumocoders/forkcms,DegradationOfMankind/forkcms,riadvice/forkcms,jessedobbelaere/forkcms,jonasdekeukelaere/forkcms,riadvice/forkcms,justcarakas/forkcms,tommyvdv/forkcms,tommyvdv/forkcms,riadvice/forkcms,DegradationOfMankind/forkcms,forkcms/forkcms,carakas/forkcms,jeroendesloovere/forkcms,jeroendesloovere/forkcms,DegradationOfMankind/forkcms