setConstraintTypes not working for FA fields

mentioned in EP1825 - the grouping functionality of polyPatches is missing from finiteArea

Failure looks like this:

Reading pa
[3] 
[3] 
[3] --> FOAM FATAL IO ERROR: (openfoam-2106)
[3] Cannot find patchField entry for procBoundary3to0
[3] 
[3] file: xxx/obliqueAirJet/main/processor3/0/ws_vibrationShell.boundaryField at line 11 to 19.
[3] 
[3]     From void Foam::GeometricField<Type, PatchField, GeoMesh>::Boundary::readField(const Foam::DimensionedField<TypeR, GeoMesh>&, const Foam::dictionary&) [with Type = double; PatchField = Foam::faPatchField; GeoMesh = Foam::areaMesh]
[3]     in file .../src/OpenFOAM/lnInclude/GeometricBoundaryField.C at line 172.
[3]
FOAM parallel run exiting
[3] 
Abort(1) on node 3 (rank 3 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, 1) - process 3