do not assert when the validator style == wxFILTER_NONE

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58105 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/valtext.cpp

@@ -170,6 +170,10 @@ bool wxTextValidator::Validate(wxWindow *parent)
 
     switch (m_validatorStyle)
     {
+    case wxFILTER_NONE:
+        // nothing to do...
+        break;
+
     case wxFILTER_INCLUDE_LIST:
         if ( m_includes.Index(val) == wxNOT_FOUND )
             errormsg = _("'%s' is invalid");