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) {