1 files changed, 7 insertions, 2 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/FileInfoJson.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/FileInfoJson.java
index 60a4daf263..6ccd460055 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/FileInfoJson.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/FileInfoJson.java
@@ -48,9 +48,14 @@ public class FileInfoJson {
 
   Map<String, FileInfo> toFileInfoMap(Change change, RevId revision, @Nullable PatchSet base)
       throws PatchListNotAvailableException {
+    ObjectId objectId = ObjectId.fromString(revision.get());
+    return toFileInfoMap(change, objectId, base);
+  }
+
+  Map<String, FileInfo> toFileInfoMap(Change change, ObjectId objectId, @Nullable PatchSet base)
+      throws PatchListNotAvailableException {
     ObjectId a = (base == null) ? null : ObjectId.fromString(base.getRevision().get());
-    ObjectId b = ObjectId.fromString(revision.get());
-    return toFileInfoMap(change, new PatchListKey(a, b, Whitespace.IGNORE_NONE));
+    return toFileInfoMap(change, PatchListKey.againstCommit(a, objectId, Whitespace.IGNORE_NONE));
   }
 
   Map<String, FileInfo> toFileInfoMap(Change change, RevId revision, int parent)