Regression: incorrect scope in T of typealias of Listing<T>/Mapping<K, T>

[bioball]

Given:

// mod1.pkl
const local lastName = "Smith"

typealias Smiths = Listing<String(endsWith(lastName))>

This breaks:

import "mod1.pkl"

res: mod1.Smiths = new { "Lily Smith" }

Error:

–– Pkl Error ––
Cannot find property `lastName`.

3 | typealias Smiths = Listing<String(endsWith(lastName))>
                                               ^^^^^^^^