[Bug] iOS: Shell + CollectionView: CollectionView item stuck on screen while browsing using Shell

[matteopiccioni]

Description

In my project I have a collectionview with a two columns of items.
All is working as expected, but if I browse to another page using side menu, when I come back to the first page, then the first row of items is printed/stuck on the screen.

Steps to Reproduce

I found the same issue on Gastropds project:
https://github.com/davidortinau/Gastropods.git
1.
Open the app
2.
On side menu go to 'Tab Sandwitch'
3.
From side menu go back to 'Home'

• Version with issue:
  The problem is only present in iOS (i try real device) and with all version of xf (4.0.0 Pre Release 9 and 4.0.1.383393-nightly)

Reproduction Link

https://github.com/davidortinau/Gastropods.git

[kingces95]

[samhouts]

Duplicate of #5831