Tom signed up for a fresh account and ended up with two riotbot convos

[ara4n]

One was a DM, one was a room. The DM one said nothing; the room one intro'd.

https://github.com/matrix-org/riot-web-rageshakes/issues/1215

[lampholder]

This was because I:

• signed up for a new account with email
• opened the email link on another device
• both devices decided they'd like to talk to riotbot pls

The DM one saying nothing is down to riot-bot - he won't start two tutorials with the same user