Visual bugs when changing many item's heights

When updating heights of multiple items (18 items in my example), I've got a visual bug - flickering effect with new (updated) items are flowing up from the bottom of collection and moving to some top position beyond the screen.
I attached video when you can see it if you will look frame-by-frame.
I also attached a screenshot of the middle state of this animation.

Video:
[Screen Recording 2019-10-02 at 18.08.22.mov.zip](https://github.com/badoo/Chatto/files/3682074/Screen.Recording.2019-10-02.at.18.08.22.mov.zip)

Start by reproducing the multi-item height update described in the issue and compare the collection's animation frame by frame with the attached video and screenshot. Trace the relevant collection layout and update behavior; done means updating many item heights no longer causes flickering or items to move from the bottom to an incorrect off-screen position.

Written by the indexing model from the issue text.