After rebooting inner experimental nodes, force their eventstate to
ISUP or else they leave off at SHUTDOWN, which later confuses swapmod (tbswap) which waits for them to reach ISUP, but of course they never do. This is arguably a misfeature of os_setup, which should probably not wait for nodes it didn't reboot, but I want to ponder that change. Besides, doing this causes the nodes not to say SHUTDOWN in the web interface. Another change to add there (web interface) is to not say "possibly down" for elabinelab nodes.