From 64f4927e1b02575e004d7567cacbab2bb1c842f4 Mon Sep 17 00:00:00 2001
From: Joerg Kiegeland <joerg@kiegeland.com>
Date: Sat, 8 Jul 2017 22:29:45 +1000
Subject: [PATCH] Fix bug with getting a stale JobQueues query result that
 resulted in the same job being executed multiple times by different worker
 threads (e.g. consider a Hangfire job then sending out the same email
 multiple times).

---
 src/Hangfire.Raven/JobQueues/RavenJobQueue.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Hangfire.Raven/JobQueues/RavenJobQueue.cs b/src/Hangfire.Raven/JobQueues/RavenJobQueue.cs
index 70f601b..b2af865 100644
--- a/src/Hangfire.Raven/JobQueues/RavenJobQueue.cs
+++ b/src/Hangfire.Raven/JobQueues/RavenJobQueue.cs
@@ -62,6 +62,7 @@ namespace Hangfire.Raven.JobQueues
                         foreach (var job in repository.Query<Hangfire_JobQueues.Mapping, Hangfire_JobQueues>()
                             .Where(fetchCondition)
                             .Where(job => job.Queue == queue)
+                            .Customize(x => x.WaitForNonStaleResultsAsOfNow())
                             .OfType<JobQueue>())
                         {
                             job.FetchedAt = DateTime.UtcNow;