After upgrading to 2.479.1 I've found that I'm being routed to the wrong Jenkins

We use SNI to route to our build, cit and dat jenkins, we use different colours for each one

After the upgrade going to the a Jenkins everything looks good, but going to a different one, then shows the login screen, but brings up the previous Jenkins

Opening an incognito tab allows us to access another a different one

I'm guessing something is being cached