writeModelFile() error - UnsupportedPropType PackageLink.PackageIdSerialize

[Meta-Maxim]

(on master)
When I try to write models with packagelinks in them to files with writeModelFile(model, "model.rbxm") this happens:

[LPGhatguy]

Funky! We might be missing test coverage for this in rbx_binary; I'll take a look before the next Remodel/Rojo releases.

[lextoumbourou]

Any luck fixing this? Still appears to be a bug in the latest remodel. It looks like it was fixed in rbx_dom, if I understand correctly.

Somehow rbxmx files don't have the same problem.