diff -r f6d10432499d -r 9afe9e0191a1 hgext/evolve.py
--- a/hgext/evolve.py	Tue Nov 17 20:25:15 2015 -0800
+++ b/hgext/evolve.py	Tue Nov 17 17:06:07 2015 -0800
@@ -2008,8 +2008,10 @@
 /!\ * hg kill -n Y W Z
 """)
     if progresscb: progresscb()
+    emtpycommitallowed = repo.ui.backupconfig('ui', 'allowemptycommit')
     tr = repo.transaction('stabilize-divergent')
     try:
+        repo.ui.setconfig('ui', 'allowemptycommit', True)
         repo.dirstate.beginparentchange()
         repo.dirstate.setparents(divergent.node(), node.nullid)
         repo.dirstate.endparentchange()
@@ -2024,6 +2026,7 @@
         phases.retractboundary(repo, tr, other.phase(), [new.node()])
         tr.close()
     finally:
+        repo.ui.restoreconfig(emtpycommitallowed)
         tr.release()
 
 def divergentdata(ctx):