Fix inverted client filter in admin hide ping

The hide=1 branch kept the admin's own pending crawler hits (==) instead
of discarding them (!=), so an admin's document GETs flushed to the
crawler list 10s later while every other client's pending hits were
wrongly dropped. This is why ordinary admin browsers showed up as
crawlers.

pagerite/analytics.py

@@ -697,7 +697,7 @@ class Store:
         if hide:
             # Admin ping: cancel pending crawler hits and scrub the session.
             self.pending_crawlers = [
-                hit for hit in self.pending_crawlers if hit.client == client_hash
+                hit for hit in self.pending_crawlers if hit.client != client_hash
             ]
             index = self.sessions.pop(client_hash, None)
             if index is not None and index < len(self.data.visits):