Comment 4 for bug 1424656

Indeed. A variable called total_holds is also available, so that could be used instead of the queue position.

For reference, in the JS OPAC, the corresponding message used to be:

hold # ${0} of ${1} total holds and ${2} potential item"
plural: "hold # ${0} of ${1} total holds and ${2} potential items"

where 0 = queue position, 1 = total holds on the current copy, and 2 = number of items that could fill the holds.