Don't skip event if default processing has inserted a tab

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40929 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/textctrl.cpp

@@ -999,6 +999,7 @@ void wxTextCtrl::OnChar(wxKeyEvent& event)
                 // This is necessary (don't know why);
                 // otherwise the tab will not be inserted.
                 WriteText(wxT("\t"));
+                eat_key = true;
             }
             break;