Backported c81975 from trunk

doc/CHANGES.txt

@@ -4,6 +4,13 @@ Zope Changes
   Change information for previous versions of Zope can be found in the
   file HISTORY.txt.
 
+  Zope 2.10.6 (Unreleased)
+
+    Bugs fixed
+
+      - Launchpad #164783: Indexes were migrated on initial creation of a
+        ZODB.
+
   Zope 2.10.5 (2007/10/30)
 
     Other changes

lib/python/Products/ZCatalog/ZCatalog.py

@@ -177,6 +177,7 @@ class ZCatalog(Folder, Persistent, Implicit):
         self._v_total = 0
 
         self._catalog = Catalog()
+        self._migrated_280 = True
 
     def __len__(self):
         # Perform a migration of _catalog.__len__ to _catalog._length