Add comment for r25525 so future devs don't think their predecessors have been smokin...

diff --git a/includes/DifferenceEngine.php b/includes/DifferenceEngine.php
index 9f7c4e1..54de8f4 100644 (file)
--- a/includes/DifferenceEngine.php
+++ b/includes/DifferenceEngine.php
@@ -166,6 +166,7 @@ CONTROL;
                                // Look for an unpatrolled change corresponding to this diff
                                $change = RecentChange::newFromConds(
                                        array(
+                                               // Add redundant timestamp so we use the existing index
                                                'rc_timestamp' => $this->mNewRev->getTimestamp(),
                                                'rc_this_oldid' => $this->mNewid,
                                                'rc_last_oldid' => $this->mOldid,