Writing zoneID with isoSurface
I'm trying to save an alpha based isoSurface from a case running with overInterDyMFoam.
Everything works fine but if I ask for zoneID as one of the fields to be written with the surface along with velocity and turbulent kinetic energy, only U and k files are produced.
I've tried to put the "dummy" keyword in the "fields" list and I get a warning for it only, so it looks like zoneID is found indeed as registered object.
## Reattaching the author to the issue ticket: @Ricky-11 ##