<p>Because many people wished to be able to retract a close vote this feature was introduced recently:</p>

<ul>
<li><a href="http://meta.stackexchange.com/questions/915/can-we-have-the-ability-to-retract-a-close-vote-before-it-closes">Can we have the ability to retract a close vote before it closes?</a></li>
</ul>

<p>To undo a close vote we have to click on "close" again to see the following window:</p>

<p><img src="https://i.sstatic.net/LSaWA.png" alt="enter image description here"></p>

<p>Note that in case we had selected "Retract Close Vote" there we will not be able to vote to close on this question again or later, even if it was edited for bad.</p>

<p><strong>This obviously can not be done for a <a href="http://meta.askubuntu.com/a/6210/">moderator flag</a> we had issued.</strong></p>