How to allow non-UTF8 for appengine datastore keys
<p>Anybody knows how to allow non-utf8 for appengine datastore keys?
I am using appengine for go.</p>

<p>Below is the error i get if i put non-utf8.</p>

<pre><code>API error 1 (datastore_v3: BAD_REQUEST): key path element name is not valid UTF-8
</code></pre>

<blockquote>
  <p><strong>project member said it is a design decision:</strong>
  <a href="https://code.google.com/p/googleappengine/issues/detail?id=12896" rel="nofollow">https://code.google.com/p/googleappengine/issues/detail?id=12896</a></p>
</blockquote>

<p>Thanks.</p>