Bug with channel management?

Found an issue with manage channels role.  Have one on a server and was experimenting, 

My "Role" can only Manage Channels and Roles, and does NOT have permission to edit messages.    But I could go channel by channel and give myself positive permission to "Manage messages" even though I had no permission to do so before.

I think the manage chat permissions need to have the same safety from granting that permission as the manage roles permissions already has,  can grant a permission to have to roles lower then yours that you have access too, but unable to give powers that you don't have already.