--- a/hgext3rd/evolve/evolvecmd.py	Sat Mar 24 13:17:05 2018 +0530
+++ b/hgext3rd/evolve/evolvecmd.py	Sat Mar 24 16:38:03 2018 +0530
@@ -254,6 +254,7 @@
                 rebasedbmupdate = _bookmarksupdater(repo, bumped.node(), tr)
         except MergeFailure:
             evolvestate['current'] = bumped.hex()
+            evolvestate['precursor'] = prec.hex()
             evolvestate.save()
             repo.ui.write_err(_('evolution failed!\n'))
             msg = _("fix conflict and run 'hg evolve --continue'\n")