--- a/hgext3rd/evolve/utility.py	Wed Mar 11 16:04:06 2020 +0100
+++ b/hgext3rd/evolve/utility.py	Wed Mar 11 16:05:53 2020 +0100
@@ -139,9 +139,8 @@
     targets = obsutil.successorssets(repo, ctx.node())[0]
     assert targets
     targetrevs = [repo[r].rev() for r in targets]
-    roots = repo.revs(b'roots(%ld::%ld)', targetrevs, targetrevs)
     heads = repo.revs(b'heads(%ld::%ld)', targetrevs, targetrevs)
-    if len(roots) > 1 or len(heads) > 1:
+    if len(heads) > 1:
         cheader = (_(b"ancestor of '%s' split over multiple topological"
                      b" branches.\nchoose an evolve destination:") %
                    evolvecand)