diff --git a/java/com/google/gerrit/extensions/common/ChangeInfo.java b/java/com/google/gerrit/extensions/common/ChangeInfo.java
index c95dcc3..945c239 100644
--- a/java/com/google/gerrit/extensions/common/ChangeInfo.java
+++ b/java/com/google/gerrit/extensions/common/ChangeInfo.java
@@ -23,6 +23,8 @@
 import java.util.Map;
 
 public class ChangeInfo {
+  // ActionJson#copy(List, ChangeInfo) must be adapted if new fields are added that are not
+  // protected by any ListChangesOption.
   public String id;
   public String project;
   public String branch;
diff --git a/java/com/google/gerrit/extensions/common/RevisionInfo.java b/java/com/google/gerrit/extensions/common/RevisionInfo.java
index fc443dd..f262901 100644
--- a/java/com/google/gerrit/extensions/common/RevisionInfo.java
+++ b/java/com/google/gerrit/extensions/common/RevisionInfo.java
@@ -19,6 +19,8 @@
 import java.util.Map;
 
 public class RevisionInfo {
+  // ActionJson#copy(List, RevisionInfo) must be adapted if new fields are added that are not
+  // protected by any ListChangesOption.
   public transient boolean isCurrent;
   public ChangeKind kind;
   public int _number;
diff --git a/java/com/google/gerrit/server/change/ActionJson.java b/java/com/google/gerrit/server/change/ActionJson.java
index a9ad3b3..0a9fe81 100644
--- a/java/com/google/gerrit/server/change/ActionJson.java
+++ b/java/com/google/gerrit/server/change/ActionJson.java
@@ -115,8 +115,8 @@
     if (visitors.isEmpty()) {
       return null;
     }
-    // Include all fields from ChangeJson#toChangeInfo that are not protected by
-    // any ListChangesOptions.
+    // Include all fields from ChangeJson#toChangeInfoImpl that are not protected by any
+    // ListChangesOptions.
     ChangeInfo copy = new ChangeInfo();
     copy.project = changeInfo.project;
     copy.branch = changeInfo.branch;
@@ -128,6 +128,7 @@
     copy.mergeable = changeInfo.mergeable;
     copy.insertions = changeInfo.insertions;
     copy.deletions = changeInfo.deletions;
+    copy.hasReviewStarted = changeInfo.hasReviewStarted;
     copy.isPrivate = changeInfo.isPrivate;
     copy.subject = changeInfo.subject;
     copy.status = changeInfo.status;
@@ -135,10 +136,13 @@
     copy.created = changeInfo.created;
     copy.updated = changeInfo.updated;
     copy._number = changeInfo._number;
+    copy.requirements = changeInfo.requirements;
+    copy.revertOf = changeInfo.revertOf;
     copy.starred = changeInfo.starred;
     copy.stars = changeInfo.stars;
     copy.submitted = changeInfo.submitted;
     copy.submitter = changeInfo.submitter;
+    copy.unresolvedCommentCount = changeInfo.unresolvedCommentCount;
     copy.workInProgress = changeInfo.workInProgress;
     copy.id = changeInfo.id;
     return copy;
@@ -148,8 +152,8 @@
     if (visitors.isEmpty()) {
       return null;
     }
-    // Include all fields from ChangeJson#toRevisionInfo that are not protected
-    // by any ListChangesOptions.
+    // Include all fields from RevisionJson#toRevisionInfo that are not protected by any
+    // ListChangesOptions.
     RevisionInfo copy = new RevisionInfo();
     copy.isCurrent = revisionInfo.isCurrent;
     copy._number = revisionInfo._number;