Lock-teams doesn't lock diplomacy

[elexis]

The lock-teams setting is currently quite useless. It forces you to be allied with your team members, but still allows changing the diplomacy of enemies to ally (i.e. backstabbing as you cooperate with the enemy).

Currently there is no way to change the teams anyway (you can only change diplomacy, i.e. ally/neutral/enemy, but you will always stay in the same team).

The lock-teams setting must be changed so that it actually enforces diplomacy-lockdown. ---

Also sending tributes to the enemy should be forbidden if locked-diplomacy is enabled, as there is no legitimate use in that situation I can think of. Sending tributes to the enemy is either a mistake or backstabbing/trolling.

Sending resources to the enemy should be allowed for diplomacy-free games though, as you might deal a peace-treaty against resources.