OSL mx_geompropvalue_filename never returns the geomprop value

[anderslanglands]

https://github.com/AcademySoftwareFoundation/MaterialX/blob/main/libraries/stdlib/genosl/mx_geompropvalue_filename.osl

I'm no OSL expoert, but it appears as though the found geomprop is only assigned when it is not found, i.e. it's never assigned:

void mx_geompropvalue_filename(string geomprop, textureresource defaultVal, output textureresource out)
{
    // Initialize to the default
    out = defaultVal;

    // Replace the filename component from the geomprop
    string defaultFilename = defaultVal.filename;
    if (getattribute(geomprop, defaultFilename) == 0)   // <--- this should be == 1 I think?
        out.filename = defaultFilename;
}