From 4ce37756306c84263f8097f6d8881beaa7c9629d Mon Sep 17 00:00:00 2001
From: Peter Conrad <conrad@quisquis.de>
Date: Tue, 17 Sep 2019 08:06:58 +0200
Subject: [PATCH] Clean up before returning

---
 src/thread/future.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/thread/future.cpp b/src/thread/future.cpp
index 811378c..b4779dd 100644
--- a/src/thread/future.cpp
+++ b/src/thread/future.cpp
@@ -61,7 +61,11 @@ namespace fc {
     }
     _enqueue_thread();
     // Need to check _ready again to avoid a race condition.
-    if( _ready.load() ) return _wait_until( timeout_us ); // this will simply return or throw _exceptp
+    if( _ready.load() )
+    {
+       _dequeue_thread();
+       return _wait_until( timeout_us ); // this will simply return or throw _exceptp
+    }
 
     std::exception_ptr e;
     //