Pages indexes are diffrent with diffrent fab locations

[matisiekpl]

Hello.
I have an app, where default fab location is BubbleBottomBarFabLocation.end and user can change location to BubbleBottomBarFabLocation.center. It works, but there is a problem with pages indexes. Pages indexes are diffrent when fabLocation: BubbleBottomBarFabLocation.center and fabLocation: BubbleBottomBarFabLocation.end and it doesn't depends on the index of BubbleBottomBarItem in items. I think, the page index should be independent from fabLocation.
Can you make a fix for this bug?
Thanks,
Matthew