 		return result
 
 	_explodePackToOps: (packObj) ->
+		# convert a pack into an array of ops
 		doc_id = packObj.doc_id
 		project_id = packObj.project_id
 		result = packObj.pack.map (item) ->

					if err?
						return callback err, updates
					else
						extraSet = MongoManager._unpackResults(result2).filter(filterFn)
						updates = updates.concat extraSet
						updates = updates.slice(0, limit) if limit?
						callback err, updates
				return
			if err?

				callback err, updates

	_unpackResults: (updates) ->
		#	iterate over the updates, if there's a pack, expand it into ops and
		# insert it into the array at that point
		result = []
		updates.forEach (item) ->
			if item.pack?
				all = MongoManager._explodePackToOps item
