Currently, in a scenario where a ContentControl is bound to Data, and contains an Element within that contains a Data Binding:
If a DataProperty is renamed in the DataStructure, the Binding will fail to update in the Element.

In this scenario, the value persists until the Page is closed and re-opened, and continues to display the previous/cached value not only on-Stage, but also continues to use previous DataValues in Property fields where it was previously bound.

Repro Steps:

1) Download and open the attached Studio Project.

2) Navigate to the DataPanel, select the active DataSet, and inspect the Values for the [0] DataItem in the collection. Adjust the Trim_Start and Trim_End numbers are desired to observe the Radial Element on-Stage changing.

3) Enter the ContentControl's on the Stage's 'Content' Template, and open it for edit.

4) In the Ellipse's Properties, identify the 'Trim_Start" Property, and expand its Binding.

Observe that it is bound to Trim_Start.

5) Return to the DataPanel, and select the "SegmentView" DataStructure in which can be found the "Trim_Start" and "Trim_End" Properties.

6) Rename "Trim_Start" to a new name of 'Trim_Start_New".

Observe how the shape of the Radial on-Stage has not changed.
This is unexpected if the Binding is meant to update with the name change. This is unexpected if the Binding is supposed be killed in the process of a rename.

7) Select the Ellipse in the ContentControl/Content once again, and return to the Trim Start Property.

8) The Trim Start Properties Binding, expand the Path Selector, and select the new "Trim_Start_New" Path.

Observe how the shape of the Radial on-Stage has not changed as expected since the Value in the DataSet is unchanged.

9) Return to the DataPanel, select the DataSet, and change the Trim_Start value to any new value between 0 and 1.

Observe how the Radial on-Stage continues to be unchanged.

10) Save and close all open documents, then re-open MainPage.xaml

Observe how now, the Radial on stage is reflecting the new values from the DataSet.

Expected Results: Data Values are instantly reflected on-Stage as soon as a valid Binding is made.
Expected Results: When a DataProperty is renamed, it either renames in the Bindings in which its used OR it destroys the previous Bindings and does not continue to display the old cached value on the Stage nor in the Property's value.