Reset cursor before beginning reload sequence.

(cherry picked from commit af381a2fb2)

src/frontends/qt4/GuiView.cpp

@@ -3173,6 +3173,7 @@ static bool ensureBufferClean(Buffer * buffer)
 
 bool GuiView::reloadBuffer(Buffer & buf)
 {
+	currentBufferView()->cursor().reset();
 	Buffer::ReadStatus status = buf.reload();
 	return status == Buffer::ReadSuccess;
 }