How are concurrent requests processed by the api (using the same user account)? I see that the ui does not support the same account having more than one session open at the same time. The new login, ends the prior one. I would like to know what happens (or is supposed to happen) if the api has requests sent through it which overlap in this way? Are they queued, or do they "collide" and cancel each other out such the first does not get completed and/or return results? This will help me to plan how I can handle my integrations on servers which are designed to process many concurrent requests.