We use Confluence Version: 5.9.5 and some user did the picture to the page, in the way like above.
But the confluence shows an other person in thumbnail.

<a class="conf-macro output-inline userlink-0" href="https://xxxx-man1" title="">
<ac:image ac:class="userLogo logo" ac:height="250" ac:thumbnail="true">
<ri:url ri:value="https://sxxxx-man1/10518916/user-avatar"/>
</ac:image>
</a> <a class="conf-macro output-inline userlink-2" href="https://xxxx-man2" title="">
<ac:image ac:class="userLogo logo">
<ri:url ri:value=xxxx-man2/>
</ac:image>
and so one
We found an workaround with Picture profile macro, but it I think it is in interesting question, why do confluence show a woman insted of first man. 