REST API: Wiki Update Doesn't work

Previously, updating a WIKI via the REST API has worked. However, at some point, it looks like that functionality has been broken.

Per the docs: https://confluence.atlassian.com/bitbucket/wiki-resources-296095206.html#wikiResources-PUTapageupdate

Here's an example:

PUT https://api.bitbucket.org/1.0/repositories/thedillonb/43accomplishments/wiki/Home\\
data = "Moo"
path = "/Home.wiki"

Result:

<ul class="errorlist">
<li>path
<ul class="errorlist">
<li>Please choose a new title, Home.wiki aleady exists.</li>
</ul>
</li>
</ul>