Cleanup and fix for a mutability issue
Cleanup and fix for a mutability issue

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