Missing usePromise.ts file causes webpack/source-map-loader build warnings

[AE-MS]

When my webpack project (which uses source-map-loader) consumes react-promise, it consistently outputs a build warning:

WARNING in D:/<a path>/node_modules/react-promise/dist/esm/usePromise.js Module Warning (from D:/<a path>/node_modules/source-map-loader/index.js): (Emitted value instead of an instance of Error) Cannot open source file 'D:\<a path>\node_modules\react-promise\src\usePromise.ts': Error: ENOENT: no such file or directory, open 'D:\<a path>\node_modules\react-promise\src\usePromise.ts' @ ./src/index.tsx 19:40-64

Indeed usePromise.js.map includes a reference to "../../src/usePromise.ts" and usePromise.ts is not included in the react-promise package.

It seems like either that source file should be included in the package or the map file should not reference it to avoid causing the warning?

Thanks!