WPF: Nested Scrollviewer do not repsect parent MaxHeight constraints

_This issue has been moved from [a ticket on Developer Community](https://developercommunity2.visualstudio.com/t/WPF:-Nested-Scrollviewer-do-not-repsect-/807392)._

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When doing a layout like this in a WPF App(Fullframework or .Net Core) the nested Scrollviewer is not respecting the MaxHeight of the first Grid Row

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Actual Result:
ActualHeight of the ScrollViewer is 800px and I can not scroll the nested scrollviewer

Expected Result:
ActualHeight of the ScrollViewer is 400px bacause MaxHeight of Colum in the Grid is 400p and I can scroll the nested scrollviewer

Same things happen if nesting the scrollviewer this way instead of using a Grid.

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### Original Comments

#### Feedback Bot on 11/6/2019, 02:12 PM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

#### Feedback Bot on 12/13/2019, 10:47 AM:

I have detected that for the last 35 days, this issue didn't have much product team activity and a very small amount of new votes or comments. Based on this, its severity, and affected area, it’s my experience that this issue is very unlikely to be fixed.

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### Original Solutions
(no solutions)