diff --git a/src/comms/managers.py b/src/comms/managers.py
index d40c1c293..6362471ae 100644
--- a/src/comms/managers.py
+++ b/src/comms/managers.py
@@ -11,6 +11,7 @@ _GA = object.__getattribute__
 _PlayerDB = None
 _ObjectDB = None
 _Channel = None
+_SESSIONS = None
 _ExternalConnection = None
 _User = None
 
@@ -305,24 +306,21 @@ class ChannelManager(models.Manager):
         to this channel. If Online is true, it only returns
         connected players.
         """
+        global _SESSIONS
+        if not _SESSIONS:
+            from src.server.sessionhandler import SESSIONS as _SESSIONS
 
         PlayerChannelConnection = ContentType.objects.get(app_label="comms",
                                                           model="playerchannelconnection").model_class()
         ExternalChannelConnection = ContentType.objects.get(app_label="comms",
                                                             model="externalchannelconnection").model_class()
-        # Importing here to avoid circular imports.
-        from src.server.sessionhandler import SESSIONS
         players = []
         if online:
-            session_list = SESSIONS.get_sessions()
-            for session in session_list:
-                if not session.logged_in:
-                    continue
-                try:
-                    players.append(PlayerChannelConnection.objects.get(db_player=session.get_player(),
-                                                                       db_channel=channel))
-                except PlayerChannelConnection.DoesNotExist:
-                    pass
+            session_list = _SESSIONS.get_sessions()
+            unique_online_users = set(sess.uid for sess in session_list if sess.logged_in)
+            online_players = (sess.get_player() for sess in session_list if sess.uid in unique_online_users)
+            for player in online_players:
+                players.extend(PlayerChannelConnection.objects.filter(db_player=player, db_channel=channel))
         else:
             players.extend(PlayerChannelConnection.objects.get_all_connections(channel))
 
diff --git a/src/objects/manager.py b/src/objects/manager.py
index 729511ace..0e8d0bbc5 100644
--- a/src/objects/manager.py
+++ b/src/objects/manager.py
@@ -183,6 +183,10 @@ class ObjectManager(TypedObjectManager):
             return list(self.filter(cand_restriction & type_restriction & Q(**querykwargs)))
         except exceptions.FieldError:
             return []
+        except ValueError:
+            from src.utils import logger
+            logger.log_errmsg("The property '%s' does not support search criteria of the type %s." % (property_name, type(property_value)))
+            return []
 
     @returns_typeclass_list
     def get_contents(self, location, excludeobj=None):
@@ -253,7 +257,8 @@ class ObjectManager(TypedObjectManager):
                   By default (if not attribute_name is set), this will search object.key and object.aliases in order. Can also
                   be on the form #dbref, which will, if exact=True be matched against primary key.
         attribute_name: (str): Use this named ObjectAttribute to match searchdata against, instead
-                  of the defaults.
+                  of the defaults. If this is the name of a database field (with or without the db_ prefix), that
+                  will be matched too.
         typeclass (str or TypeClass): restrict matches to objects having this typeclass. This will help
                    speed up global searches.
         candidates (list obj ObjectDBs): If supplied, search will only be performed among the candidates
diff --git a/src/settings_default.py b/src/settings_default.py
index 1bded0b66..068709af8 100644
--- a/src/settings_default.py
+++ b/src/settings_default.py
@@ -126,7 +126,6 @@ GAME_CACHE_TYPE = "local"
 # memory. So every now and then Evennia checks the size of this cache and resets
 # it if it's too big. This variable sets the maximum size (in MB).
 ATTRIBUTE_CACHE_MAXSIZE = 100
-# OOB (Out-of-band
 
 ######################################################################
 # Evennia Database config