agent: Accept any transition back to the gathering state
When doing a ICE restart, which can be done from any state, we can always go back into the gathering state.
This fixes a regression introduced by b20ac5ba from !188 (merged)
When doing a ICE restart, which can be done from any state, we can always go back into the gathering state.
This fixes a regression introduced by b20ac5ba from !188 (merged)