Confluence 5.1: Page properties containing a JIRA link do not export to PDF or Word

1. Create a page with Page Properties (see example below)
2. Add a JIRA issue link as one of the values
3. Export to PDF or Word -> File contains an error (see attachment)

– Example Confluence Data –
<ac:macro ac:name="details">
<ac:parameter ac:name="label">feature</ac:parameter>
<ac:rich-text-body>
<table>
<tbody>
<tr>
<th colspan="1">JIRA ID</th>
<td colspan="1">
<ac:macro ac:name="jira">
<ac:parameter ac:name="server">Imtech JIRA</ac:parameter>
<ac:parameter ac:name="serverId">37936ce2-8a45-3ac2-a14b-04c3cb819a19</ac:parameter>
<ac:parameter ac:name="key">SDHELPDESK-135</ac:parameter>
</ac:macro>
</td>
</tr>
</tbody>
</table>
</ac:rich-text-body>
</ac:macro>

– Error –
Error: The XML content could not be parsed. There is a problem at line 6, column 37. Parser message: Unexpected close tag </xml>; expected
</img>. at [row,col

]: [6,37]