--- a/tests/test-split.t	Wed Apr 24 15:57:49 2019 +0200
+++ b/tests/test-split.t	Sun Apr 14 02:18:19 2019 +0800
@@ -151,7 +151,7 @@
   $ echo "change to b" >> _b
   $ hg amend -m "_cprim"
   2 new orphan changesets
-  $ hg evolve --all
+  $ hg evolve --all --update
   move:[5] split1
   atop:[7] _cprim
   move:[6] split2
@@ -218,7 +218,7 @@
   2d8abdb827cdf71ca477ef6985d7ceb257c53c1b e2b4afde39803bd42bb1374b230fca1b1e8cc868 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '4', 'operation': 'evolve', 'user': 'test'}
   033b3f5ae73db67c10de938fb6f26b949aaef172 bb5e4f6020c74e7961a51fda635ea9df9b04dda8 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '4', 'operation': 'evolve', 'user': 'test'}
   b434287e665ce757ee5463a965cb3d119ca9e893 ead2066d1dbf14833fe1069df1b735e4e9468c40 1188c4216eba37f18a1de6558564601d00ff2143 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '13', 'operation': 'split', 'user': 'test'}
-  $ hg evolve --all
+  $ hg evolve --all --update
   move:[8] split1
   atop:[11] split4
   move:[9] split2