The composite operator for masks only specifies the mode for combining multiple masks, when drawing the bottom mask we should always draw this with source-over.
Pull request: https://github.com/WebKit/WebKit/pull/1465
Committed r295538 (251543@main): <https://commits.webkit.org/251543@main>
Reviewed commits have been landed. Closing PR #1465 and removing active labels.
*** Bug 240324 has been marked as a duplicate of this bug. ***
*** Bug 241004 has been marked as a duplicate of this bug. ***