backport: avoiding events during destruction, fixes #10855

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_9_0_BRANCH@60904 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/listbox_osx.cpp

@@ -103,7 +103,10 @@ bool wxListBox::Create(
 
 wxListBox::~wxListBox()
 {
+    m_blockEvents = true;
     FreeData();
+    m_blockEvents = false;
+
     // make sure no native events get sent to a object in destruction
     delete m_peer;
     m_peer = NULL;