When viewing another user's subscriptions (through the Administer message subscribe permission) the subscriptions of the current user are shown.
For example:
I'm an admin and I'm subscribed to the "Admin Network" organic group.
Maria is a user subscribed to the "User Network" organic group.
When I go to Maria's profile the subscription tab will show my subscriptions, in this case, the "Admin Network". In order to see Maria's subscriptions, "User Network", I have to masquerade as her.
Please let me know if you need more information.
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