clicking on the disabled menuitem, should not have any effect on the menuItems but where here clicking on the disabled menuitem deselects the selected menuitem.

Step to reproduce:
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1) Run the attached program.
2) click on the "Go" Menu. Observe that First MenuItem called "High" is disabled. & second menuitem called "prev" is selected.
3) Click on the disabled menuitem. Observe that "prev" menuitem which is selected gets deselected. If you see the same behaviour , then the bug is reproduced.

I tested this on Mustang b104 .