<p>Yep, that was it, I only had template, I deleted the other one in the merge accidentaly.</p>

<p>By the way for some reason</p>

<pre><code>template&lt;typename SortPolicy&gt;
template&lt;typename Archive&gt;
</code></pre>

<p>produced an error but</p>

<pre><code>template&lt;typename Archive&gt;
template&lt;typename SortPolicy&gt;
</code></pre>

<p>didn't. The second version is how it is in the master branch.</p>

<p>Finally we can close this <g-emoji alias="smile" fallback-src="https://assets-cdn.github.com/images/icons/emoji/unicode/1f604.png">😄</g-emoji> </p>

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