Using --forceExit and --coverage exits before coverage is reported Jest@20

[tolu]

Do you want to request a feature or report a bug?

bug

What is the current behavior?

When executing tests with --coverage and --forceExit flags, the process exits before coverage is reported. Dropping --forceExit reports coverage but the process never exits (at least on windows in one of my projects, but I haven't gotten to the bottom of that yet).
This worked as expected in 19.0.2, but fails in 20.0.1.

If the current behavior is a bug, please provide the steps to reproduce and either a repl.it demo through https://repl.it/languages/jest or a minimal repository on GitHub that we can yarn install and yarn test.

What is the expected behavior?

Using --forceExit with --coverage should report coverage before exiting (or at least offer a warning).

Please provide your exact Jest configuration and mention your Jest, node, yarn/npm version and operating system.

Node 7.10.0
Yarn 0.23.4
Npm 4.2.0

Minimal repo for reproducing the behaviour (on both win and mac)
https://github.com/tolu/jest-coverage-bug
Just yarn && yarn test and see that no coverage is reported

[thymikee]

Not super sure, but this might get fixed with #3554

[tolu]

Just tested with my case by manipulating local jest with changes from #3554 and it seems to work perfectly!

Thanks!

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