Unsubscribing from specific repo alerts when subscribed to the whole organization

[archon810]

Hi,

Our main channel is currently subscribed to all slack alerts for all current and future repos under the same organization like so:

/slack subscribe our-org-name

This has worked great, but now we need to create a separate channel for one of the repos and move just the alerts for that repo into this new channel. Doing something like this in the main channel doesn't work:

/slack unsubscribe our-org-name/repo1

because of this error:

You're not currently subscribed to our-org-name/repo1
Use /github subscribe our-org-name/repo1 to subscribe.

Is subscribe to all but then provide exclusions case completely unsupported or is there a solution? Do we really need to unsubscribe from the our-org-name alerts and subscribe to every individual repo manually?