Fix Encoding radio button issue in New Document

Sync UTF-8 checkbox with UTF-8 radio button

Closes #2377

PowerEditor/src/WinControls/Preference/preferenceDlg.cpp

@@ -1243,6 +1243,8 @@ INT_PTR CALLBACK DefaultNewDocDlg::run_dlgProc(UINT message, WPARAM wParam, LPAR
 
 				case IDC_RADIO_OTHERCP :
 				{
+					ndds._openAnsiAsUtf8 = false;
+					makeOpenAnsiAsUtf8(false);
 					::EnableWindow(::GetDlgItem(_hSelf, IDC_COMBO_OTHERCP), true);
 					auto index = ::SendDlgItemMessage(_hSelf, IDC_COMBO_OTHERCP, CB_GETCURSEL, 0, 0);
 					ndds._codepage = static_cast<int32_t>(::SendDlgItemMessage(_hSelf, IDC_COMBO_OTHERCP, CB_GETITEMDATA, index, 0));