title: In Visual Studio code version 1.64, MarkdownString with 4 leading spaces is displayed as blank in Hover
body: <p>Our Visual Studio Code Extension uses the HoverProvider API to show custom hovers on the editor.  We are using MarkdownString for the hover content with 4 leading spaces for each line to enable syntax coloring. Till version 1.63, this was working fine. But on using vscode version 1.64, hover shows empty tooltips.</p>
  <p>Turns out that the issue is resolved once the leading spaces are removed. But the syntax coloring does not show up if there are no leading spaces. Is there a change in the behavior of MarkdownString, or is there a different way to enable syntax coloring for the data type?</p>