So using LocalParams with dollar-sign references to other parameters.
In LocalParams in general, you can use single-quotes for values that
have spaces in them:
{!dismax qf='field^5 field2^10'} => no problem
And even if the value does not have spaces, you can use single quotes
too, why not:
{!dismax qf='field'} => no problem
But when it comes to dollar sign variable dereferences, this does not
seem to be true.
{!dismax qf=$some_qf} => no problem, and debugQuery reveals it is
indeed using the qf I desire.
{!dismax qf='$some_qf'} => Solr throws "undefined field $some_qf".
Is this a bug in Solr?
