Merge pull request #15421 from artfulrobot/queue-safety
authorMatthew Wire <mjw@mjwconsult.co.uk>
Sun, 13 Oct 2019 15:04:22 +0000 (16:04 +0100)
committerGitHub <noreply@github.com>
Sun, 13 Oct 2019 15:04:22 +0000 (16:04 +0100)
Fix bug in SQL queue that can cause tasks to be run twice in a multiprocess environment


Trivial merge