Baboso! fix `chan.send(None)` indent..

tractor/_runtime.py

@@ -1113,13 +1113,22 @@ class Actor:
                         db_cs.cancel()
 
             # XXX: is this necessary (GC should do it)?
-            if chan.connected():
+            # XXX WARNING XXX
+            # Be AWARE OF THE INDENT LEVEL HERE
+            # -> ONLY ENTER THIS BLOCK WHEN ._peers IS
+            # EMPTY!!!!
+            if (
+                not self._peers
+                and chan.connected()
+            ):
                     # if the channel is still connected it may mean the far
                     # end has not closed and we may have gotten here due to
                     # an error and so we should at least try to terminate
                     # the channel from this end gracefully.
-
-                log.runtime(f"Disconnecting channel {chan}")
+                    log.runtime(
+                        'Terminating channel with `None` setinel msg\n'
+                        f'|_{chan}\n'
+                    )
                     try:
                         # send a msg loop terminate sentinel
                         await chan.send(None)