After refresh, ordering of messages appears random

[kieran]

What you did:

• Went to minimal.chat
• typed messages
• hit refresh

What happened:

Correct order:

hello john

                       Hey there, thanks for checking out Minimal Chat :)

who is this
and how did you get this number

                                      Thanks for signing up for CATS facts
                Did you know a group of 3 or more cats is called a clowder
                                        For more CATS facts please hit 123

123
moar CATS facts pls