Fix range-based for loop in Open62541AsyncBackend

Change-Id: I90385172fe2781c082e2e3f8bbf3efd0cc0ac36b
Pick-to: 6.0
Reviewed-by: Frank Meerkoetter <frank.meerkoetter@basyskom.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/opcua/open62541/qopen62541backend.cpp b/src/plugins/opcua/open62541/qopen62541backend.cpp
index c90a8a9..a597cb3 100644
--- a/src/plugins/opcua/open62541/qopen62541backend.cpp
+++ b/src/plugins/opcua/open62541/qopen62541backend.cpp
@@ -1119,7 +1119,7 @@ void Open62541AsyncBackend::reevaluateClientIterateTimer()
         m_clientIterateTimer.start(m_maximumIterateInterval);
     else {// Derive an interval from the the lowest subscription and a lower limit.
         double minimum = (std::numeric_limits<double>::max)();
-        for (const auto subscription : m_subscriptions)
+        for (const auto &subscription : m_subscriptions)
             minimum = subscription->interval() < minimum ? subscription->interval() : minimum;
         // Set an interval between configured minimum and maximum, depending on the fastest subscription
         m_clientIterateTimer.start((std::min)(m_maximumIterateInterval, (std::max)(m_minimumIterateInterval, minimum)));