overset patch with setFields

I'm not sure, whether this is bug or a feature so I am going to call it an annoyance.

Let's imagine you have an overset patch, where you are using setFields utility to set alpha.water level. At the same time you have empty BC oversetPatch of type overset (in boundary file and fields files as well). When you are running setFields setting values on volumetric region, everything is fine, once you start setting alpha on faces (e.g. to set a fixed value on inlets and outlets) you will receive an error saying oversetPatch needs value entry.

so the oversetPatch in alpha.water file looks like this:

oversetPatch { type overset; value uniform 0; }

It is not great nor terrible, but it's ugly.

OF v2106, ubuntu, arm64 standard out of box compilation