Actually check if event_id isn't returned by _get_state_groups
Actually check if event_id isn't returned by _get_state_groups

matrix-org/synapse,iot-factory/synapse,matrix-org/synapse,iot-factory/synapse,matrix-org/synapse,TribeMedia/synapse,rzr/synapse,TribeMedia/synapse,rzr/synapse,iot-factory/synapse,matrix-org/synapse,matrix-org/synapse,iot-factory/synapse,TribeMedia/synapse,TribeMedia/synapse,matrix-org/synapse,TribeMedia/synapse,rzr/synapse,iot-factory/synapse,rzr/synapse,rzr/synapse