.

wcfs/internal/xbtree/treediff.go

@@ -194,7 +194,8 @@ func (n *nodeInRange) NodePath() []Node {
 }
 */
 func (n *nodeInRange) Path() []zodb.Oid {
-	return append(n.prefix, n.node.POid())
+	// return full copy - else .prefix can become aliased in between children of a node
+	return append([]zodb.Oid{}, append(n.prefix, n.node.POid())...)
 }
 
 // rangeSplit represents set of nodes covering a range.
@@ -986,7 +987,7 @@ func xidOf(obj zodb.IPersistent) string {
 	return xid.String()
 }
 
-func (rn nodeInRange) String() string {
+func (rn *nodeInRange) String() string {
 	done := " ";   if rn.done         { done = "*" }
 	hi := rn.hi_
 	if hi < KeyMax {