fix handling updating.. I've been running this for a long time

so I think it's good..

[git-p4: depot-paths = "//depot/": change = 1665]

DIDLLite.py

@@ -265,9 +265,11 @@ class Item(Object):
 	needupdate = True
 
 	def doUpdate(self, child=False):
-		Container.doUpdate(self.cd[self.parentID])
 		# do NOT update parent container per 2.2.9 for
 		# ContainerUpdateID changes
+		# must be Container.didUpdate, otherwise we could update the
+		# parent when we really just want to update the ID
+		Container.didUpdate(self.cd[self.parentID])
 
 	def toElement(self):
 
@@ -327,7 +329,7 @@ class Container(Object, list):
 	childCount = property(lambda x: len(x))
 	searchable = None
 	updateID = 0
-	needupdate = False
+	needcontupdate = False
 
 	_optionattrs = Object._optionattrs.copy()
 	_optionattrs.update({
@@ -342,6 +344,7 @@ class Container(Object, list):
 		Object.__init__(self, cd, id, parentID, title, **kwargs)
 		list.__init__(self)
 		self.doingUpdate = False
+		self.needcontupdate = False
 		self.oldchildren = {}
 
 	def genCurrent(self):
@@ -373,8 +376,8 @@ class Container(Object, list):
 		if self.doingUpdate:
 			return
 		self.doingUpdate = True
+		self.needcontupdate = False
 
-		didupdate = False
 		children = self.genChildren()
 		if isinstance(children, dict):
 			oldchildren = self.oldchildren
@@ -419,17 +422,21 @@ class Container(Object, list):
 			if klass is not None:
 				self.cd.addItem(self.id, klass, name, *args,
 				    **kwargs)
-				didupdate = True
+				self.needcontupdate = True
 
 		# sort our children
 		self.sort()
 
-		if didupdate:
-			self.didUpdate()
-
 		self.doingUpdate = False
 
+		if self.needcontupdate:
+			self.didUpdate()
+
 	def didUpdate(self):
+		if self.doingUpdate:
+			self.needcontupdate = True
+			return
+
 		if self.id == '0':
 			self.updateID = (self.updateID + 1)
 		else: