Re: #membership #membership
I was about to do that but read that when you delete a subgroup, theI don't think that's true of subgroups, only primary groups.
That is, in the form: "email@example.com"; or the alias form "firstname.lastname@example.org" (which is also the form used by groups which have no subgroups) only the "primary-name" is required to be unique system-wide and is reserved on deletion.
Then I read someone say that if you rename a subgroup before youAgain, I think this only applies to primary group names. When you rename a group the prior name is not held in reserve.
I've never used Slack so I can't help with the rest of your question.
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