Feature code *87 hint line too long on system with a lot of conferences

Not sure if this is a conferences or confpro feature code, but *87 has a hint that tracks activity on every conference on the system. On a system with a lot of conferences, the hint line can look like this:

/etc/asterisk/extensions_additional.conf:exten => *87,hint,confbridge:3002&confbridge:81000&confbridge:810000&confbridge:81001&confbridge:81002&confbridge:81003&confbridge:81004&confbridge:81010&confbridge:81048&confbridge:81053&confbridge:81054&confbridge:81058&confbridge:81203&confbridge:81204&confbridge:81205&confbridge:81206&confbridge:81207&confbridge:81208&confbridge:81209&confbridge:81212&confbridge:81213&confbridge:81219&confbridge:81220&confbridge:81221&confbridge:81222&confbridge:81227&confbridge:81230&confbridge:81231&confbridge:81232&confbridge:81233&confbridge:81236&confbridge:81237&confbridge:81239&confbridge:81241&confbridge:81242&confbridge:81243&confbridge:81244&confbridge:81245&confbridge:81246&confbridge:81247&confbridge:81248&confbridge:81249&confbridge:81250&confbridge:81251&confbridge:81252&confbridge:81253&confbridge:81254&confbridge:81255&confbridge:81259&confbridge:81260&confbridge:81261&confbridge:81262&confbridge:81263&confbridge:81264&confbridge:81266&confbridge:81268&confbridge:81271&confbridge:81272&confbridge:81274&confbridge:81277&confbridge:81278&confbridge:81279&confbridge:81285&confbridge:81287&confbridge:81290&confbridge:81297&confbridge:81310&confbridge:81311&confbridge:81313&confbridge:81314&confbridge:81322&confbridge:81323&confbridge:81324&confbridge:81326&confbridge:81329&confbridge:81338&confbridge:81339&confbridge:81342&confbridge:81346&confbridge:81347&confbridge:81348&confbridge:81349&confbridge:81350&confbridge:81352&confbridge:81353&confbridge:81361&confbridge:81362&confbridge:81363&confbridge:81364&confbridge:81366&confbridge:81369&confbridge:81370&confbridge:81372&confbridge:81380&confbridge:81381&confbridge:81384&confbridge:81386&confbridge:81387&confbridge:81390&confbridge:81391&confbridge:81480&confbridge:81484&confbridge:81486&confbridge:81489&confbridge:81494&confbridge:81495&confbridge:81499&confbridge:81501&confbridge:81502&confbridge:81503&confbridge:81504&confbridge:81641&confbridge:81642&confbridge:81644&confbridge:81646&confbridge:81647&confbridge:81650&confbridge:81657&confbridge:81701&confbridge:81997&confbridge:83000&confbridge:83001&confbridge:83004&confbridge:83005&confbridge:83006&confbridge:83007&confbridge:83008&confbridge:83009&confbridge:83010&confbridge:83011&confbridge:83012&confbridge:83020&confbridge:83021&confbridge:83022&confbridge:83023&confbridge:83024&confbridge:83025&confbridge:83026&confbridge:88697&confbridge:88698&confbridge:91205&confbridge:91213&confbridge:91236&confbridge:91246&confbridge:91247&confbridge:91252&confbridge:91297&confbridge:91313&confbridge:91314&confbridge:91324&confbridge:91326&confbridge:91342&confbridge:91362&confbridge:91363&confbridge:91381&confbridge:91384&confbridge:91386&confbridge:91486&confbridge:91489&confbridge:91646&confbridge:91650&confbridge:91653&confbridge:91700&confbridge:91701&confbridge:97145&confbridge:9901&confbridge:9902&confbridge:9903

During reload, you see warning lines like this:

[2017-01-10 09:46:42] WARNING[12711] manager.c: Discarding message from 127.0.0.1. Line too long: onfbridge:81274&confbridg...

Does not seem to impair usage.