diff --git a/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php b/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php
--- a/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php
@@ -61,9 +61,10 @@
     // Remove the merge commit.
     $hashes = array_diff($hashes, array($commit));
 
-    return DiffusionQuery::loadHistoryForCommitIdentifiers(
+    $history = DiffusionQuery::loadHistoryForCommitIdentifiers(
       $hashes,
       $drequest);
+    return mpull($history, 'toDictionary');
    }
 
   protected function getMercurialResult(ConduitAPIRequest $request) {
@@ -100,9 +101,10 @@
     // Remove the merge commit.
     $hashes = array_diff($hashes, array($commit));
 
-    return DiffusionQuery::loadHistoryForCommitIdentifiers(
+    $history = DiffusionQuery::loadHistoryForCommitIdentifiers(
       $hashes,
       $drequest);
+    return mpull($history, 'toDictionary');
   }
 
 }
diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -894,6 +894,7 @@
     if (!$merges) {
       return null;
     }
+    $merges = DiffusionPathChange::newFromConduit($merges);
 
     $caption = null;
     if (count($merges) > $limit) {