Only try to send Goodbye if we have a session
Only try to send Goodbye if we have a session

RyanHope/AutobahnPython,iffy/AutobahnPython,oberstet/autobahn-python,oberstet/autobahn-python,tomwire/AutobahnPython,oberstet/autobahn-python,crossbario/autobahn-python,dash-dash/AutobahnPython,iffy/AutobahnPython,markope/AutobahnPython,inirudebwoy/AutobahnPython,dash-dash/AutobahnPython,crossbario/autobahn-python,iffy/AutobahnPython,meejah/AutobahnPython,bencharb/AutobahnPython,nucular/AutobahnPython,hzruandd/AutobahnPython,Jenselme/AutobahnPython,jvdm/AutobahnPython,Geoion/AutobahnPython,schoonc/AutobahnPython,iffy/AutobahnPython,dash-dash/AutobahnPython,tavendo/AutobahnPython,ttimon7/AutobahnPython,dash-dash/AutobahnPython,crossbario/autobahn-python