Issue with Drag n' Drop functionality in Design Mode

When moving movable elements in Design Mode and there is some DIV element outside of <div class="movable-area"> system will eat the closing </div> of that outer div (in sample below it's <div class="column-right"> )

Example attached

NOTE: this is a new "default" theme

BEFORE Moving and Saving
========================

<inp2:m_DefineElement name="sidebar">
<div class="column-right">

<div class="movable-area">
<div class="movable-element">
<inp2:m_RenderElement design="side_box" type="block-news">
<inp2:m_Capture to_var="header">
<img src="<inp2:m_TemplatesBase />img/news_ttl.gif" width="68" height="14" alt="News" />
</inp2:m_Capture>

<inp2:st_ContentBlock num="5"/>
</inp2:m_RenderElement>
</div>
<div class="movable-element">
<inp2:m_RenderElement design="side_box" type="block-promo">
<inp2:m_Capture to_var="header">
<img src="<inp2:m_TemplatesBase />img/promo_ttl.gif" width="136" height="20" alt="Promotion" />
</inp2:m_Capture>

<inp2:st_ContentBlock num="6"/>
</inp2:m_RenderElement>
</div>
</div>

</div>
</inp2:m_DefineElement>

AFTER Elements moved around
===========================

<inp2:m_DefineElement name="sidebar">
<div class="column-right">

<div class="movable-area">
<div class="movable-element">
<inp2:m_RenderElement design="side_box" type="block-promo">
<inp2:m_Capture to_var="header">
<img src="<inp2:m_TemplatesBase />img/promo_ttl.gif" width="136" height="20" alt="Promotion" />
</inp2:m_Capture>

<inp2:st_ContentBlock num="6"/>
</inp2:m_RenderElement>
</div>
<div class="movable-element">
<inp2:m_RenderElement design="side_box" type="block-news">
<inp2:m_Capture to_var="header">
<img src="<inp2:m_TemplatesBase />img/news_ttl.gif" width="68" height="14" alt="News" />
</inp2:m_Capture>

<inp2:st_ContentBlock num="5"/>
</inp2:m_RenderElement>
</div>

</div>

</inp2:m_DefineElement>