diff -r c7ca43bba6c5 -r 897b371cd0c5 tests/test-evolve-obshistory-amend-then-fold.t
--- a/tests/test-evolve-obshistory-amend-then-fold.t	Tue Feb 18 17:58:22 2020 +0800
+++ b/tests/test-evolve-obshistory-amend-then-fold.t	Tue Feb 18 18:07:11 2020 +0800
@@ -167,7 +167,9 @@
                       *, (glob)
                       "content"
                   ],
-                  "operation": "fold",
+                  "operations": [
+                      "fold"
+                  ],
                   "succnodes": [
                       "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                   ],
@@ -190,7 +192,9 @@
                   "effects": [
                       "description"
                   ],
-                  "operation": "amend",
+                  "operations": [
+                      "amend"
+                  ],
                   "succnodes": [
                       "b7ea6d14e664bdc8922221f7992631b50da3fb07"
                   ],
@@ -214,7 +218,9 @@
                       "description",
                       "content"
                   ],
-                  "operation": "fold",
+                  "operations": [
+                      "fold"
+                  ],
                   "succnodes": [
                       "eb5a0daa21923bbf8caeb2c42085b9e463861fd0"
                   ],