Angular CLI reports library as CommonJS or AMD dependency

[FabienDehopre]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[X] Bug report  
[ ] Performance issue
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

Angular CLI reports that @ngneat/cashew has a CommonJS or AMD dependency that can cause optimization bailouts.

Warning: C:\Projects\XYZ\src\app\core\core.module.ts depends on '@ngneat/cashew'. CommonJS or AMD dependencies can cause optimization bailouts.
For more info see: https://angular.io/guide/build#configuring-commonjs-dependencies

Expected behavior

I guess that Angular CLI shouldn't complain about @ngneat/cashew being a CommonJS or AMD dependency.

Minimal reproduction of the problem with instructions

I just updated cashew from last 1.x version latest 2.x version and Angular CLI started to produce this warning.

Environment

Angular version: 12.1.1
Angular CLI version 12.1.1

Browser:
- [ ] Chrome (desktop) version XX
- [ ] Chrome (Android) version XX
- [ ] Chrome (iOS) version XX
- [ ] Firefox version XX
- [ ] Safari (desktop) version XX
- [ ] Safari (iOS) version XX
- [ ] IE version XX
- [ ] Edge version XX
 
For Tooling issues:
- Node version: 14.15.5  
- Platform:  Windows

Others:

[NetanelBasal]

I don't see any warning in my application. It's an Angular CLI library.

[FabienDehopre]

I know this seemed weird to me because I didn't have the issue before Angular 12.

[enekonieto]

I see same warning:

Angular CLI: 12.1.1
Node: 14.16.1
Package Manager: npm 7.16.0
OS: linux x64

Angular: 12.1.1
... animations, cdk, cli, common, compiler, compiler-cli, core
... forms, material, material-moment-adapter, platform-browser
... platform-browser-dynamic, platform-server, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1201.1
@angular-devkit/build-angular   12.1.1
@angular-devkit/core            12.1.1
@angular-devkit/schematics      12.1.1
@schematics/angular             12.1.1
rxjs                            6.6.7
typescript                      4.3.5