REGRESSION(r294536): NativeImages copied from ImageBufferIOSurfaceBackend are mutated after copy Before GPUP changes the IOSurface, CGImages in WP must copy the contents. From bug 240368.
Pull request: https://github.com/WebKit/WebKit/pull/1346
<rdar://problem/95100686>
Committed r295746 (251751@main): <https://commits.webkit.org/251751@main> Reviewed commits have been landed. Closing PR #1346 and removing active labels.