#612 issue deletion bug

[auc]

patch for correct issue deletion :

@@ -232,6 +232,7 @@ class PloneIssueNG(BaseBTreeFolder, Pare

def manage_beforeDelete(self, item, container):
""" Hook for pre-deletion actions """
+ BaseBTreeFolder.manage_beforeDelete(self, item, container)
self.unindexObject()

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if you don't do something like that,objects in the BTreeFolder are not properly reclaimed ; this can cause problems if one puts there objects with file system storage.