Regression: WNavigationBar menu with WPopupMenu submenu remains selected
This can be observed with the widgetgallery example at internalPath /navigation/navigation-bar. Click on the "Help" menu in the Example navigation bar, then click on "About" in the popup menu. Finally, click "OK" to dismiss the dialog. The "Help" menu item in the navigation bar will remain selected. This differs from earlier versions of Wt.
The issue was observed on Wt github master at 4.5.0-rc1-52-g42a5ef9f and the first commit with the issue appears to be 4.5.0-rc1-47-g993d7461.