Index: libcfa/src/bits/containers.hfa
===================================================================
--- libcfa/src/bits/containers.hfa	(revision a50502128f8eabae54ded84a8ab9885411aad583)
+++ libcfa/src/bits/containers.hfa	(revision 6565321f006635d534961956dec06f0226a0fc3f)
@@ -169,4 +169,5 @@
 				get_next( *head ) = 0p;
 				verify(*this.tail == 1p);
+				verify( get_next(*head) == 0p );
 				return head;
 			}