CollectionView inside a Grid completely wrong measurements.

[Hooterr]

Description

Grid is broken when a collection view is added inside.

On screenshot RowDefinitions="auto,*,auto,*"

Without CollectionView it appears to be calculating heights fine.

When you show CollectionView everything is calculated wrong.

In same cases turning on RowSpacing would cause the collection view to grow in size by the amount of rows - 1 times the row spacing. Everything seems so unstable it's ridiculous...

Steps to Reproduce

1. Add a CollectionView to a Grid that has at least 2 rows.
2. CollectionView's height becomes the same as the Grid size with no respect to the RowDefinitions

Link to public reproduction project repository

https://github.com/Hooterr/MauiGridBugs

Version with bug

7.0.86

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 16.4

Did you find any workaround?

This is so basic it should work without any workarounds.

Relevant log output

No response

[hartez]

This is fixed by #14951.