INFRA-258 Update the community channel 'handle' to community from community-channel
I tried changing the 'handle' for https://chat.civicrm.org/civicrm/channels/community-channel from 'community-channel' to just 'community', and received this error message: 'A channel with that handle was previously created' . @bgm wrote that 'there's probably a deleted channel with the same name.'
Original author: joemcl