I expect this is a case of "you're holding it wrong", but I figure it's worth asking what the right way to do this is...
I want to glob the equivalent of */*/somefile (not **/foo, specifically two directories deep).
However, I do NOT want the glob to match if any of the directory components are a symlink.
*(/) is the glob specifier for directories [1]
It would then follow that *(/)/*(/)/somefile would match dir/dir/somefile and not dir/link/somefile.
This is not the case -- even *(/)/ (i.e. appending a trailing slash to all directories) do not work out-of-the-box as one might expect.
I've read through 14.8 Filename Generation [2] as best I can (my favorite hack being the NTREF=reffile bit) but haven't found anything that suggests how one might do this.