Steps to reproduce:

1. open the attached index.html
2. try to change the values in select

Actual results:

In Firefox 110, source-out and copy do not work as expected. They ignore the clip, so the result is different than expected.

Expected results:

The result should be same as in Firefox 109 or Chromium-based browsers like Chrome. This works in Firefox 110 only when you manually disable hardware acceleration.

The Bugbug bot thinks this bug should belong to the 'Core::Graphics: WebRender' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=921e84e9c52d87be4be039ff1201360d55001d78&tochange=7f5fcfd222de8f210574dde829e2775449744808

:jrmuizel, since you are the author of the regressor, bug 1804952, could you take a look? Also, could you set the severity field?

For more information, please visit auto_nag documentation.

A fix landed in bug 1818820 which is quite similar. We should retest this in latest nightly to see if it's fixed.

Thanks. I confirm that my use case is fixed in 112.0a1 (2023-03-04) (64-bit).