Team IRC channel constraints are overly pedantic

[ahf]

When trying to use #bornhack-content as public IRC channel for both video and content team, I got an error from the Django admin interface with "The public IRC channel name is already in use on another team!"

This seems disconnected from our general fairly flexible way of defining teams.

[tykling]

the uniqueness checks are there so the irc bot can identify a team from the channel (so when it joins a channel it knows who to make +f and +oO etc in the ACL). How should we handle this if multiple teams can use the same irc channel? Should it just merge all responsibles and give dem +f and all members and give them +oO, across all teams? Thoughts?