diff -r 471b7a4acf9b -r c7ca43bba6c5 tests/test-evolve-obshistory-amend-then-fold.t
--- a/tests/test-evolve-obshistory-amend-then-fold.t	Tue Feb 18 17:31:41 2020 +0800
+++ b/tests/test-evolve-obshistory-amend-then-fold.t	Tue Feb 18 17:58:22 2020 +0800
@@ -171,7 +171,9 @@
                   "succnodes": [
                       "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                   ],
-                  "user": "test",
+                  "users": [
+                      "test"
+                  ],
                   "verb": "folded"
               }
           ],
@@ -192,7 +194,9 @@
                   "succnodes": [
                       "b7ea6d14e664bdc8922221f7992631b50da3fb07"
                   ],
-                  "user": "test",
+                  "users": [
+                      "test"
+                  ],
                   "verb": "reworded"
               }
           ],
@@ -214,7 +218,9 @@
                   "succnodes": [
                       "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                   ],
-                  "user": "test",
+                  "users": [
+                      "test"
+                  ],
                   "verb": "folded"
               }
           ],