Type checking bug

[Mudloop]

This feels like a bug :

Type 'PatchNode' is not assignable to 'PatchNode | undefined'

So it's complaining that a certainly-assigned thing can't be assigned to an attribute that also accepts undefined.
The other way around would make sense, but this seems wrong.

[Mudloop]

disabling lit-plugin.rules.no-incompatible-type-binding seems to work for this.