ancestor: filter out initial revisions lower than stoprev

mercurial/ancestor.py

@@ -273,7 +273,7 b' class lazyancestors(object):'
 
         Result does not include the null revision."""
         self._parentrevs = pfunc
-        self._initrevs = revs
+        self._initrevs = revs = [r for r in revs if r >= stoprev]
         self._stoprev = stoprev
         self._inclusive = inclusive
 

tests/test-ancestor.py.out

@@ -20,5 +20,5 b' iteration: [13, 11, 8, 7]'
 membership: [11, 13]
 iteration:  [13, 11]
 % lazy ancestor set for [11, 13], stoprev = 12, inclusive = True
-membership: [11, 13]
+membership: [13]
 iteration:  [13]