Unregistering when RemoteSession leaves (#2129)

Co-authored-by: David Ellis <david.ellis@atamate.com>

Author: Skully17

crossbar/worker/rlink.py

@@ -426,7 +426,7 @@ def on_registration_delete(session_id, reg_id, details=None):
 
             del self._regs[reg_id]
 
-            self.log.debug("{other} unsubscribed from {uri}".format(other=other, uri=uri))
+            self.log.debug("{other} unregistered from {uri}".format(other=other, uri=uri))
 
         @inlineCallbacks
         def register_current():
@@ -697,9 +697,13 @@ def onLeave(self, details):
         for k, v in self._subs.items():
             if v['sub'].active:
                 yield v['sub'].unsubscribe()
-
         self._subs = {}
 
+        for k, v, in self._regs.items():
+            if v["reg"] and v["reg"].active:
+                yield v["reg"].unregister()
+        self._regs = {}
+
         self.config.extra['other']._tracker.connected = False
         self.log.warn(
             '{klass}.onLeave(): rlink remote session left! (realm={realm}, authid={authid}, authrole={authrole}, session={session}, details={details}) {method}',