diff -r 16017e1bb2a1 -r 39f2c1ab3a53 hgext/evolve.py
--- a/hgext/evolve.py	Mon May 18 17:24:38 2015 -0700
+++ b/hgext/evolve.py	Thu Jun 18 15:25:51 2015 -0700
@@ -1586,7 +1586,8 @@
 
     XXX this woobly function won't survive XXX
     """
-    for base in ctx._repo.set('reverse(precursors(%d))', ctx):
+    repo = ctx.repo.unfitered()
+    for base in repo.set('reverse(precursors(%d))', ctx):
         newer = obsolete.successorssets(ctx._repo, base.node())
         # drop filter and solution including the original ctx
         newer = [n for n in newer if n and ctx.node() not in n]