[Bug 30282] New: treeview: OnExpanding is incorrectly sent to items with no children

http://bugs.winehq.org/show_bug.cgi?id=30282

             Bug #: 30282
           Summary: treeview: OnExpanding is incorrectly sent to items
                    with no children
           Product: Wine
           Version: 1.4
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: comctl32
        AssignedTo: wine-bugs(a)winehq.org
        ReportedBy: djelinski1(a)gmail.com
    Classification: Unclassified


Created attachment 39560
  --> http://bugs.winehq.org/attachment.cgi?id=39560
simple delphi app monitoring TreeView events

See the attached Delphi application. It creates a new subitem in OnExpanding
event handler. Clicking under the second + sign sends OnExpanding event to the
third item. Double-clcking the third item does the same. With native comctl32
it is possible to expand only the first two items.

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