Messages are grouped when sent with different "from" fields

Currently, chat messages which are sent by the same user by with different "from" fields (extras.from objects in the body when sent via the API) are grouped by the UI and therefore appear as though sent from the same person. For example:

person1 Sat 4:00pm

this was sent "from" person1 by user1

this was sent "from" person2 by user1

user2 Sat 4:01pm

this was sent regularly by user2

this was sent "from" person3 by user2

user1 Sat 4:02pm

this was sent regularly by user1

I assume this also affects Zapier integrations as well, however I haven't tested it.

It would be useful if these messages weren't grouped, as it could cause confusion with whether messages are being sent by Zapier integrations, Hubot instances, other API usages or even by the user themselves.