pre>
<div class="block">Returns detail infos about documents not matching
 the search formula, if a <code>since</code> date/time
 has been specified. Can be used to update external
 indexes, e.g. remove a document from an external index
 when it has matched the search formula before, but the
 last doc change made it a no-match.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>search non-matches</dd>
</dl>
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