From 1b9f363225af2f3051baecb5711c5c9c76370d78 Mon Sep 17 00:00:00 2001
From: Maxime Coste <mawww@kakoune.org>
Date: Tue, 3 Jan 2017 23:17:08 +0000
Subject: [PATCH] Fix bug relying on undefined arg evaluation order.

---
 src/selection.hh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/selection.hh b/src/selection.hh
index edf8e601..fa0da47a 100644
--- a/src/selection.hh
+++ b/src/selection.hh
@@ -101,7 +101,8 @@ struct SelectionList
 
     SelectionList& operator=(Vector<Selection> list)
     {
-        set(std::move(list), list.size()-1);
+        const size_t main_index = list.size()-1;
+        set(std::move(list), main_index);
         return *this;
     }