This was actually a great solution to what I needed, which was stitch my token back together. Had a request to separate a single pull-down (Hadoop cluster reference) to two pull-downs (Hadoop env and Hadoop cluster name), but already had the single pull-down token in all searches.
Ended up with:
<query>|makeresults |eval a="$env$", b="$cluster_type$"</query>
Worked like a charm and keeps the search from running until both tokens have a value.
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