Fixes #4689. Copy filters along with key for variable nodes when they're cloned
Fixes #4689. Copy filters along with key for variable nodes when they're cloned

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@10781 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful