From fdd231ebfd6287c70454c68f0a2e4901e9c0c7c1 Mon Sep 17 00:00:00 2001
From: Dmitry Trofimov <dmitry.trofimov@jetbrains.com>
Date: Thu, 30 Jul 2015 16:21:05 +0200
Subject: [PATCH] Add comment.

(cherry picked from commit 13187a1bf3a108b5fc34c77ee9c1677701fc233e)
---
 platform/util/src/com/intellij/openapi/util/BuildNumber.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/platform/util/src/com/intellij/openapi/util/BuildNumber.java b/platform/util/src/com/intellij/openapi/util/BuildNumber.java
index 79f30f5a3996..39e63740fb8d 100644
--- a/platform/util/src/com/intellij/openapi/util/BuildNumber.java
+++ b/platform/util/src/com/intellij/openapi/util/BuildNumber.java
@@ -181,7 +181,11 @@ public class BuildNumber implements Comparable<BuildNumber> {
 
   @Override
   public int compareTo(@NotNull BuildNumber o) {
+    //if both are snapshots then IDEA and plugin are built from sources,
+    //in that case comparing baselines doesn't make sense,
+    //so we treat those builds equal
     if (isSnapshot() && o.isSnapshot()) return 0;
+
     if (myBaselineVersion == o.myBaselineVersion) return myBuildNumber - o.myBuildNumber;
     return myBaselineVersion - o.myBaselineVersion;
   }