<p>Sounds to me like <a href="https://stats.stackexchange.com/questions/tagged/change-point" class="post-tag" title="show questions tagged &#39;change-point&#39;" rel="tag">change-point</a> is set up as synonym of <a href="https://stats.stackexchange.com/questions/tagged/changepoint" class="post-tag" title="show questions tagged &#39;changepoint&#39;" rel="tag">changepoint</a>.</p>

<p><a href="https://stats.stackexchange.com/tags/synonyms?tab=renames&amp;filter=active">https://stats.stackexchange.com/tags/synonyms?tab=renames&amp;filter=active</a></p>
