I don't know if the following case relates to this bug:
If i click on a menu item which has submenu items, the menu closes but I would expect that the menu stays open.

Fixed:
Modified: D:\work\development\head\svn\ossrepo\icefaces\trunk\icefaces\bridge\lib\extras\keyboardNavigator.js
Sending content: D:\work\development\head\svn\ossrepo\icefaces\trunk\icefaces\bridge\lib\extras\keyboardNavigator.js
Completed: At revision: 18953

I think it does not work yet.
In the war file are three menubars.
1. Click on the first menu -> the menu is opened
2. Click somewhere else within the screen -> the menu is closed
3. Move over the first menu -> the menu is opened without a click
4. Click somewhere else within the screen -> the menu is closed
5. Move over the first menu -> the menu is not opened

Behaviour verified

The attached project with the given tutorial surely has a weird behaviour:

[Update]
#The following step is wrong:
4. Click somewhere else within the screen -> the menu is closed
In order to close the menu you need to click the entry thus it is not gonna reopen again on mouseover

#The last MenuBar is not affected for some reason

#Everything works fine if you're using just one MenuBar component (in the example they are using 3 diff. MenuBar)

JIRAs with changes that have been included in official releases must not be re-opened. I've created a Clone JIRA issue for the post-1.8.2 follow-up issue: ICE-4994.