Index: list.hpp
===================================================================
--- list.hpp	(revision 51474)
+++ list.hpp	(working copy)
@@ -978,7 +978,9 @@
             carry.splice(carry.cbegin(), *this, this->cbegin());
             int i = 0;
             while(i < fill && !counter[i].empty()) {
-               carry.merge(counter[i++], p);
+               counter[i].merge(carry, p);
+               carry.swap(counter[i]);
+               ++i;
             }
             carry.swap(counter[i]);
             if(i == fill)