Currently, if you make changes to a Component that's used in a Page, and you close it without saving, it will continue to display the changes made in the Page where its used, until the Page is closed and re-opened.

Repro Steps:

1) Create a new Project containing a MainPage.xaml

2) Create a new Component, and draw any visible shape within it (a 512x512 Red Rectangle works well)

3) Save the Component, and in the MainPage.xaml, insert the Component into the Page. You should now see the contents of the Component of the Page as it was designed.

4) Return to the Component, and make any change to the Element on-Stage (Changing the 512x512 Rectangle from Red to Green works well).
DO NOT SAVE THE CHANGES MADE

5) Press the [x] on the tab of the Component to close it, and when prompted, select the red "Don't Save".

This in theory, should revert the Component to the Original Design (Red instead of Green if following the above)

Observe how on MainPage.xaml, the Component displays shows the version that was technically never saved.

Expected Results: A Component that is closed without saving should have its changes removed from memory across the Project.