Regression: console context menu remains visible when dialog is closed

The context menu in the console remains visible after a dialog has been closed. This is very annoying when you work in the console on a daily basis and use the context menu a lot.

Steps to reproduce:
1. login to the console as admin
2. right-click a node and choose any action (e.g. 'Add node', 'Delete node', etc.)
3. in the popup dialog, complete the action or choose 'Cancel'

Expected: the context menu disappears when the popup dialog disappears
Actual: the context menu stays visible after the popup dialog has disappeared. Choosing an action in the leftover context menu shows an all-white 'Access Denied Page'.

Workaround: click anywhere in the console to remove the context menu.