ToggleSwitch outline not displayed in child windows

[raplemie]

Describe the bug (actual behavior)

When using suggested style copy method exposed in related thread, the ToggleSwitch outlines are lost.

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This looks like a different problem specific to ToggleSwitch. Could you open a new issue for tracking it? I may have an idea what's going wrong.

Originally posted by @mayank99 in #1579 (comment)

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Expected behavior

ToggleSwitch behave normally like other components while in a child window, given the copying of style that is working for other components

Reproduction

Link to a minimal repro:
https://codesandbox.io/s/itwinui-react-upgrade-and-popout-forked-5z6mpz?file=/src/App.tsx

Steps to reproduce

1. When clicking on "Click me", notice that all styles apprear correct, but ToggleSwitch outline is not present

Additional information

[FlyersPh9]

If I add border-width: 1px; and border-style: solid; in dev tools, it works. Something must be wrong with this line.

[mayank99]

fixed in 2.12.9

[raplemie]

Awesome, thanks!