Fatal error: Declaration of PageBlockDisplayVariant::__sleep() must be compatible with BlockDisplayVariant::__sleep()

Fixed in the d11 issue

since the package is being used now, said fix should be available in the latest release/rc, which it isn't

Hi Team,

I see this code change as part of the 8.x-4.0-rc3 - https://git.drupalcode.org/project/page_manager/-/blob/8.x-4.0-rc3/src/P...
But the Issue ID is not present as part of the release note.

Regards
Divya