[Bug 35248] New: Context menu vanishes on mousing over sub-menu dropdown in Crescendo music editor

http://bugs.winehq.org/show_bug.cgi?id=35248

Bug ID: 35248
           Summary: Context menu vanishes on mousing over sub-menu
                    dropdown in Crescendo music editor
           Product: Wine
           Version: 1.7.9
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
    Classification: Unclassified

Created attachment 47010
  --> http://bugs.winehq.org/attachment.cgi?id=47010
Menu channel output

Crescendo uses right-click context menus to access functions on certain
elements.  When I right-click on such an element (such as the time signature)
the context menu appears, and responds properly to mousing over simple items in
it; selecting one results in the correct action.  As soon as the mouse hits an
item with a sub-menu dropdown, the whole context menu disappears.

To reproduce: run Crescendo under wine.  When it shows a new composition
window, right-click on the "4/4" which is the second item in the staff.  Run
the mouse pointer down the available items.  When it gets to "Repetition >" the
menu disappears.

I'm not seeing anything obvious in the logs for menu; I looked there first to
make sure this wasn't similar to bug 29399.  Relevant portion of menu log
attached.

Crescendo is available at http://www.nch.com.au/notation/