SRFModel tmp early release

Summary

SRFModel illegal tmp use

Steps to reproduce

Run SRFPimpleFoam tutorial:

--> FOAM FATAL ERROR: (openfoam-2309)
tmp<N4Foam14GeometricFieldINS_6VectorIdEENS_12fvPatchFieldENS_7volMeshEEE> deallocated

Environment information

• OpenFOAM version : v2308

Possible fixes

Introduced in !628 (merged)