Merge pull request #4564 from annando/avoid-duplicate
authorHypolite Petovan <mrpetovan@gmail.com>
Thu, 8 Mar 2018 23:22:18 +0000 (18:22 -0500)
committerGitHub <noreply@github.com>
Thu, 8 Mar 2018 23:22:18 +0000 (18:22 -0500)
Avoid SQL errors due to duplicate entries in the "participation" table


Trivial merge