Infinite loop while validating real rom image

I'm getting the following error on winterfell rom image with utk winterfell.rom validate :

runtime: goroutine stack exceeds 1000000000-byte limit
fatal error: stack overflow

followed by repeating:

	/home/jvdg/go/src/github.com/linuxboot/fiano/pkg/uefi/biosregion.go:140 +0x47 ...
github.com/linuxboot/fiano/pkg/visitors.(*Validate).Visit(0xc00000e570, 0x5c2200, 0xc0000781e0, 0x0, 0x0)
	/home/jvdg/go/src/github.com/linuxboot/fiano/pkg/visitors/validate.go:218 +0x3001 ...
github.com/linuxboot/fiano/pkg/uefi.(*BIOSRegion).Apply(0xc0000781e0, 0x5c1a40, 0xc00000e570, 0x0, 0x0)

fiano/pkg/visitors/validate.go

Line 218 in 03f5e21

if err := f.Apply(v); err != nil {

I guess this should read as:

			if err := e.Value.Apply(v); err != nil {
				return err
			}