Fix bug about parent groups duplicated
Fix bug about parent groups duplicated

leotsarev/joinrpg-net,joinrpg/joinrpg-net,kirillkos/joinrpg-net,joinrpg/joinrpg-net,kirillkos/joinrpg-net,joinrpg/joinrpg-net,leotsarev/joinrpg-net,leotsarev/joinrpg-net,leotsarev/joinrpg-net,joinrpg/joinrpg-net