do not register the closing-connections hook multiple times
do not register the closing-connections hook multiple times

josuebrunel/erppeek,CLVsol/erppeek,factorlibre/erppeek,yvaucher/erppeek,NeovaHealth/erppeek,yvaucher/erppeek,Endika/erppeek,raycarnes/erppeek