When expanding an XPage widget from the side bar of the Notes client, the workspace tab icon of another application gets changed unexpectedly. Does anyone encounter similar issue and has a solution?

Steps to reproduce the problem:
1. Create a blank database named "test.nsf" on my Domino server.
2. Open test.nsf with Domino Designer client and then create a new xpage named "test.xsp". Close the Domino Designer client.
3. Open test.nsf with Notes client, then right-click the workspace icon of test.nsf and select: Application -> Properties -> "Launch" tab.
4. Set the "When opened in the Notes client" property as "Open designated XPage (Standard client)" and "XPage: test.xsp".
5. Double-click the workspace icon of test.nsf to launch the application.

6. From the "Widgets" toolbar, select "Configure a Widget from Current Context...".
7. On the "Configure a widget from Notes" dialog box, select "Open this XPage", then click "Next".
8. On the "Configure a Widget" dialog box, choose the "Display as a panel" option, then click "Finish".
9. Close test.nsf from the Notes client.
10. From the side bar, select "My Widgets". You will see the icon of your newly created XPage widget.
11. From the side bar, click the title of your widget to expand it.
12. You will find that the workspace tab icon of the current application on the workspace has been changed to the database icon of test.nsf unexpectedly.