Cisco CIMC - The maximum number of user sessions has been reached

I somehow ran into a "The maximum number of user sessions has been reached" error when working on a new Cisco BE6000 / UCS C220 chassis install.  I had previously updated all the chassis software using the Host Upgrade Utility so I imagine it may have somehow been just me. 

To fix things you can SSH to the CIMC address and run:

show user-session

To change to a particular session from the resulting list, note the session index numbers from the user-session list and run:

scope user-session sessionindex

To end the session you just switched to, run:

terminate

To exit the scope of that session, run:

exit