HMR does not work when exporting undefined

[kylemh]

Bug report

Describe the bug

As described by @timneutkens -> #5857 (comment)

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

• Change this line to

aboutPage.replace('export default', 'export default undefined;\nexport const fn =')

and run yarn testonly --testPathPattern="basic" -t "should recover after a bad return from the render function"

Expected behavior

Edit to test should pass

[canotech]

I am the same Issue with version ^7.0.0