The size of one of the layers is incorrect, and it is clipped.
I am investigating it.
One of the layers in this test (box5) does not have a backing store of its own, so it is painting into its parent layer. However the parent layer does not completely contain box5. The calculation that we do in RenderLayer::computeRepaintRectsIncludingDescendants() does not take the size of box5 into account, so even though we recalculate the parent size, it ends up being the same as without box5, and box5 is clipped.
Don't forget to add things to the blocker, so we can track these issues
Closing this bug because the EFL port has been removed from trunk.
If you feel this bug applies to a different upstream WebKit port and was closed in error, please either update the title and reopen the bug, or leave a comment to request this.