Sometimes 2 simultaneous editors can work on a workflow

[christad92]

Sometimes 2 simultaneous editors can work on a workflow without presence blocking one of them. This is probably due to latency.

To replicate, 2 editors should open one workflow and the blocked user should refresh 4/5 times and they will be unblocked.

https://drive.google.com/file/d/1gVCQ4xIy7yujlDuE-M-DsvwiCS91EJkV/view?usp=sharing