Hyperlink with Empty Link Text getting generated for General Link Field that has a Media Link with an Empty Link Description

[milanjt]

I've a General Link field. Using 'Insert media link' I have it pointed to a Media Item under the Media Library.

When the page is rendered in the Experience Editor Mode, Link correctly display the Media Item Name and you can get the usual control above it to modify the Link. However in the preview mode it generates an empty Link Text.

If I use the Sitecore Field renderer for the same field, it correctly shows the Media Item name as the Link text.

Here's the code used in the control -

<br />
<%=Editable(x=> x.ReadMore )%>
<br />
<sc:Link runat="server" Field="ReadMore" />

Here's the HTML output I get in the preview mode for both -

<br>
<a href="http://sc81u3.local/-/media/Files/SomePDF.ashx"></a>
<br>
<a href="http://sc81u3.local/-/media/Files/SomePDF.ashx">SomePDF</a>

If I insert a Link using the "Insert link" option available on a General Link field, this is not a problem.

Question: Is this a bug or am I missing something here?

Glass Mapper Version: V4
Sitecore Version: 8.1 update 3

Thanks.