Converting from annotated html to xwiki/2.1 using DefaultHTMLConverter.fromHTML can remove macros

{{velocity wiki="false"}}
$services.wysiwyg.fromAnnotatedXHTML('<!--startmacro:paragraphs-numbering|-||-|= H1 =

== H2 ==

= H1 \{\{reference id="HH1"/}} H2 \{\{reference id="HH2"/}} =--><div data-xwiki-non-generated-content="java.util.List&lt;org.xwiki.rendering.block.Block&gt;" class="xwiki-metadata-container"><h1 id="HH1" class="wikigeneratedid wikigeneratedheader"><span>H1</span></h1><h2 id="HH2" class="wikigeneratedid wikigeneratedheader"><span>H2</span></h2><h1 id="HH1H2" class="wikigeneratedid wikigeneratedheader"><span>H1 <!--startmacro:reference|-|id="HH1"--><!--stopmacro--> H2 <!--startmacro:reference|-|id="HH2"--><!--stopmacro--></span></h1></div><!--stopmacro--><!--startmacro:context|-|document="Main.WebHome"|-|= H1 =

== H2 ==

= H1 \{\{reference id="HH1"/}} H2 \{\{reference id="HH2"/}} =
--><!--stopmacro--><div class="wikimodel-emptyline"></div><h1 id="HH1H2A0" class="wikigeneratedid"><span>H 1 <!--startmacro:reference|-|id="HH1"--><!--stopmacro--> H 2&nbsp; <!--startmacro:reference|-|id="HH2"--><!--stopmacro--></span></h1>', 'xwiki/2.1')
{{/velocity}}

{{paragraphs-numbering}}
= H1 =

== H2 ==

= H1  H2  =
{{/paragraphs-numbering}}

{{context document="Main.WebHome"}}
= H1 =

== H2 ==

= H1 {{reference id="HH1"/}} H2 {{reference id="HH2"/}} =

{{/context}}


= H 1 {{reference id="HH1"/}} H 2  {{reference id="HH2"/}} =