From e526d5e1647db23bc01c8d49d17488f3b1a89616 Mon Sep 17 00:00:00 2001
From: Roman Shevchenko <roman.shevchenko@jetbrains.com>
Date: Thu, 9 Mar 2017 15:06:44 +0100
Subject: [PATCH] [updater] finds a nearest candidate for move, fixed again
 (IDEA-CR-19029)

---
 updater/src/com/intellij/updater/DiffCalculator.java | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/updater/src/com/intellij/updater/DiffCalculator.java b/updater/src/com/intellij/updater/DiffCalculator.java
index 60f576283ec8..a08a663c6025 100644
--- a/updater/src/com/intellij/updater/DiffCalculator.java
+++ b/updater/src/com/intellij/updater/DiffCalculator.java
@@ -112,9 +112,7 @@ public class DiffCalculator {
       }
     }
 
-    if (best.isEmpty()) throw new AssertionError("Failed to find a candidate for '" + path + "' in " + paths);
-
-    return best;
+    return !best.isEmpty() ? best : null;
   }
 
   public static Map<Long, List<String>> groupFilesByContent(Map<String, Long> map) {