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-rw-r--r--synapse/handlers/presence.py2
-rw-r--r--tests/handlers/test_presence.py16
2 files changed, 17 insertions, 1 deletions
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index 13b5b4da93..4bbcb52b28 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -838,7 +838,7 @@ class PresenceEventSource(object):
         updates = []
         # TODO(paul): use a DeferredList ? How to limit concurrency.
         for observed_user in cachemap.keys():
-            if not (to_key < cachemap[observed_user].serial < from_key):
+            if not (to_key < cachemap[observed_user].serial <= from_key):
                 continue
 
             if (yield self.is_visible(observer_user, observed_user)):
diff --git a/tests/handlers/test_presence.py b/tests/handlers/test_presence.py
index 1850deacf5..fdc2e8de4a 100644
--- a/tests/handlers/test_presence.py
+++ b/tests/handlers/test_presence.py
@@ -29,6 +29,7 @@ from synapse.server import HomeServer
 from synapse.api.constants import PresenceState
 from synapse.api.errors import SynapseError
 from synapse.handlers.presence import PresenceHandler, UserPresenceCache
+from synapse.streams.config import SourcePaginationConfig
 
 
 OFFLINE = PresenceState.OFFLINE
@@ -676,6 +677,21 @@ class PresencePushTestCase(unittest.TestCase):
             msg="Presence event should be visible to self-reflection"
         )
 
+        config = SourcePaginationConfig(from_key=1, to_key=0)
+        (chunk, _) = yield self.event_source.get_pagination_rows(
+            self.u_apple, config, None
+        )
+        self.assertEquals(chunk,
+            [
+                {"type": "m.presence",
+                 "content": {
+                     "user_id": "@apple:test",
+                     "presence": ONLINE,
+                     "last_active_ago": 0,
+                }},
+            ]
+        )
+
         # Banana sees it because of presence subscription
         (events, _) = yield self.event_source.get_new_events_for_user(
             self.u_banana, 0, None