Same Team Manager, different Teams

I´m seeing a strange behavior related to teams and I´m starting to think that this is a bug. I have 2 different teams for the role domain, each one has rights to a different set of roles. When I configure the same team manager for both teams, the rights kinda exclude themselves and this team manager can´t request any roles available for the 2 teams. This is happening on IDM 4.7.2.

Does that make sense?