Index: slist.hpp
===================================================================
--- slist.hpp	(revision 51474)
+++ slist.hpp	(working copy)
@@ -1264,6 +1264,7 @@
             carry.splice_after(carry.cbefore_begin(), *this, this->cbefore_begin());
             int i = 0;
             while(i < fill && !counter[i].empty()) {
+               carry.swap(counter[i]);
                last_inserted = carry.merge(counter[i++], p);
             }
             BOOST_INTRUSIVE_INVARIANT_ASSERT(counter[i].empty());