@angular-devkit 0.1100.5 > 0.1100.6 breaking change

[joshcomley]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

Yes, the previous version in which this bug was not present was: 0.1100.5

Description

This file has a new default value of true for watch:

https://github.com/angular/angular-cli/blob/master/packages/angular_devkit/build_angular/src/karma/schema.json

This breaks ng test usual behaviour which previously defaulted to false for watch, causing tests to hang in the command line when using ChromeHeadless.

🔬 Minimal Reproduction

Create a new angular project using 0.1100.5, set karma.conf.js to ChromeHeadless and run ng test - the tests will run.
Create a new angular project using 0.1100.6, set karma.conf.js to ChromeHeadless and run ng test - the tests will not run.

🔥 Exception or Error

Tests will not run.

🌍 Your Environment

Angular CLI: 11.0.6
Node: 14.15.0
OS: win32 x64

Angular: 11.0.6
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1100.6
@angular-devkit/build-angular   0.1100.6
@angular-devkit/core            11.0.6
@angular-devkit/schematics      11.0.6
@angular/cdk                    11.0.3
@schematics/angular             11.0.6
@schematics/update              0.1100.6
ng-packagr                      11.0.3
rxjs                            6.6.3
typescript                      4.0.5

Anything else relevant?
Nope.

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