Fails to transform one line in Lit

[ZMYaro]

The current version of lit/index.js is:

import"@lit/reactive-element";import"lit-html";export*from"lit-element/lit-element.js";export*from"lit-html/is-server.js";

The output with this middleware enabled is:

import "/node_modules/@lit/reactive-element/reactive-element.js";
import "/node_modules/lit-html/lit-html.js";
export * from "lit-element/lit-element.js";
export * from "/node_modules/lit-html/is-server.js";

For some reason, it fails to transform one of the lines.

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Edit: Apparently if I npm install lit-element (even though that is no longer necessary), it works. It seems to be an issue with the middleware not transforming paths it cannot locate in the node_modules directory.