Closing the main menu with Run/Stop propagates the keypress to the C64

[sy2002]

In V5 we introduced a new feature: You can go one menu-level up (from a sub-menu to the main-menu) by pressing Run/Stop. Subsequently you can also close then main menu via Run/Stop (additionally to via Help). But if you do so, the Run/Stop keypress that happens to close the OSM is propagated to the C64.

You can see this for example if you run

10 PRINT "HELLO"
20 GOTO 10

and then - while this BASIC program is running - you open the OSM and then close it via Run/Stop: The BASIC program will be interrupted.

Expected behavior:

The Run/Stop keypress that happens within the OSM shall not be propagated to the C64 core.

[sy2002]

Fixed with commit f53356a