From d1a0e83423e0b2dbf3c882caae882d41d853b655 Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nlopes@microsoft.com>
Date: Mon, 13 Jul 2020 14:25:12 +0100
Subject: [PATCH] fix crash

---
 src/util/stacked_value.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util/stacked_value.h b/src/util/stacked_value.h
index 478f64d43..0db01e95f 100644
--- a/src/util/stacked_value.h
+++ b/src/util/stacked_value.h
@@ -59,6 +59,10 @@ public:
         m_value = std::move(m);
     }
 
+    void operator=(T &&arg) {
+        m_value = std::move(arg);
+    }
+
     operator T&() {
         return m_value;
     }