diff options
Diffstat (limited to 'synapse/handlers/message.py')
| -rw-r--r-- | synapse/handlers/message.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 0799ec9a84..f9544fe7fb 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -1079,7 +1079,10 @@ class EventCreationHandler: raise SynapseError(400, "Can't send same reaction twice") # Don't attempt to start a thread if the parent event is a relation. - elif relation_type == RelationTypes.THREAD: + elif ( + relation_type == RelationTypes.THREAD + or relation_type == RelationTypes.UNSTABLE_THREAD + ): if await self.store.event_includes_relation(relates_to): raise SynapseError( 400, "Cannot start threads from an event with a relation" |