Pressing 'Reply in thread' on a message with a reaction produces a blank summary

[robintown]

Steps to reproduce

1. Send a message
2. React to that message
3. Press 'Reply in thread'

Outcome

What did you expect?

No thread summary since I haven't started the thread yet

What happened instead?

Operating system

NixOS unstable

Browser information

Firefox 100.0

URL for webapp

develop.element.io

Application version

Element version: 479d4bf-react-6d6cfcde11a0-js-4721aa1d241a Olm version: 3.2.8

Homeserver

Synapse 1.58.0

Will you send logs?

No