This fixes the problem mentioned in 8e1aa5b11c.
Turns out that it's a long-standing Synapse bug:
https://github.com/matrix-org/synapse/issues/9768
This fixes the problem mentioned in 8e1aa5b11c.
Turns out that it's a long-standing Synapse bug:
https://github.com/matrix-org/synapse/issues/9768