BK-1062 Duplicated code for joining/leaving groups
BK-1062 Duplicated code for joining/leaving groups

MiczFlor/Booktype,ride90/Booktype,danielhjames/Booktype,olegpshenichniy/Booktype,olegpshenichniy/Booktype,okffi/booktype,sourcefabric/Booktype,ride90/Booktype,eos87/Booktype,MiczFlor/Booktype,ride90/Booktype,olegpshenichniy/Booktype,okffi/booktype,kronoscode/Booktype,ride90/Booktype,kronoscode/Booktype,sourcefabric/Booktype,MiczFlor/Booktype,kronoscode/Booktype,rob-hills/Booktype,sourcefabric/Booktype,danielhjames/Booktype,olegpshenichniy/Booktype,rob-hills/Booktype,MiczFlor/Booktype,olegpshenichniy/Booktype,okffi/booktype,okffi/booktype,sourcefabric/Booktype,okffi/booktype,eos87/Booktype,rob-hills/Booktype,eos87/Booktype,danielhjames/Booktype,eos87/Booktype,danielhjames/Booktype,eos87/Booktype,rob-hills/Booktype,MiczFlor/Booktype,kronoscode/Booktype,kronoscode/Booktype,danielhjames/Booktype,ride90/Booktype,sourcefabric/Booktype