VC/Zoom: fix corner case in host user selection
VC/Zoom: fix corner case in host user selection

ThiefMaster/indico-plugins,ThiefMaster/indico-plugins,indico/indico-plugins,ThiefMaster/indico-plugins,ThiefMaster/indico-plugins,indico/indico-plugins,indico/indico-plugins,indico/indico-plugins