Running the Ansible-kohadev with plack Did a git pull. Was able to keep testing for a while, then was kicked into installer (after closing an invoice) Installer kept looping me back through, never performing update. Disabled plack and update went through.
This is fixed by bug 14778. If you look at the plack logs, you will notice it says "MySQL server has gone away" which is the root cause of Koha redirecting to the installer. Please test against master+14778 *** This bug has been marked as a duplicate of bug 14778 ***