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* updates rooms live beacon ids on destroy Signed-off-by: Kerry Archibald <kerrya@element.io> * expose live beacons ids Signed-off-by: Kerry Archibald <kerrya@element.io> * room state emit all the time on beacon liveness change Signed-off-by: Kerry Archibald <kerrya@element.io> * update comment Signed-off-by: Kerry Archibald <kerrya@element.io>