From 33ab927a5c7716530d8cadec7f1200976713453c Mon Sep 17 00:00:00 2001
From: Adrien Gougeon <adrien.gougeon@ens-rennes.fr>
Date: Fri, 14 Apr 2023 12:37:41 +0200
Subject: [PATCH 1/1] add missing '&' causing temporary value to be modified

---
 src/plugins/operation.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/operation.cpp b/src/plugins/operation.cpp
index 28b186d478..68977c4093 100644
--- a/src/plugins/operation.cpp
+++ b/src/plugins/operation.cpp
@@ -86,7 +86,7 @@ void Operation::receive(Operation* source)
         break;
       }
     if (enough_tokens) {
-      for (auto [key, val] : predecessors_)
+      for (auto& [key, val] : predecessors_)
         val--;
       enqueue_execs(1);
     }
-- 
2.20.1