def __subClone(self, pillow, feathers):
if not feathers or not self._document:
return
path = feathers
doc = None
if ";" in feathers:
path, doc = feathers.split(";")
item = self._document.get(path)
if not item:
return
from wallaby.common.document import Document
newDoc = Document(data=copy.deepcopy(item))
newDoc.resetDocumentID()
if doc:
yield DocumentChanger.transform(newDoc, doc)
self._throw(Database.In.SaveDocument, (newDoc, None))
