--- a/hgext/evolve.py	Tue Dec 23 14:29:16 2014 -0600
+++ b/hgext/evolve.py	Tue Jan 27 16:07:57 2015 +0000
@@ -805,6 +805,10 @@
         try:
             if repo['.'].rev() != dest.rev():
                 merge.update(repo, dest, False, True, False)
+            if repo._bookmarkcurrent:
+                repo.ui.status(_("(leaving bookmark %s)\n") %
+                               repo._bookmarkcurrent)
+            bookmarks.unsetcurrent(repo)
             if keepbranch:
                 repo.dirstate.setbranch(orig.branch())
             r = merge.graft(repo, orig, orig.p1(), ['local', 'graft'])

--- a/tests/test-evolve.t	Tue Dec 23 14:29:16 2014 -0600
+++ b/tests/test-evolve.t	Tue Jan 27 16:07:57 2015 +0000
@@ -859,3 +859,20 @@
   nothing to evolve here
   (2 troubled changesets, do you want --any ?)
   [2]
+
+
+Evolve disables active bookmarks.
+
+  $ hg up 10
+  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+  $ hg bookmark testbookmark
+  $ ls .hg/bookmarks*
+  .hg/bookmarks
+  .hg/bookmarks.current
+  $ hg evolve
+  move:[8] a2
+  atop:[10] a1__
+  (leaving bookmark testbookmark)
+  working directory is now at f37ed7a60f43
+  $ ls .hg/bookmarks*
+  .hg/bookmarks