Fixed #14417: wxRichTextCtrl crashes on LoadFile

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71806 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/richtext/richtextctrl.cpp

@@ -2663,6 +2663,8 @@ bool wxRichTextCtrl::RecreateBuffer(const wxSize& size)
 
 bool wxRichTextCtrl::DoLoadFile(const wxString& filename, int fileType)
 {
+    SetFocusObject(& GetBuffer(), true);
+
     bool success = GetBuffer().LoadFile(filename, (wxRichTextFileType)fileType);
     if (success)
         m_filename = filename;

src/richtext/richtextstylepage.cpp

@@ -158,7 +158,7 @@ bool wxRichTextStylePage::TransferDataFromWindow()
 bool wxRichTextStylePage::TransferDataToWindow()
 {
     wxPanel::TransferDataToWindow();
-    
+
     wxRichTextStyleDefinition* def = wxRichTextFormattingDialog::GetDialogStyleDefinition(this);
     if (def)
     {