Set $parentLen in contributions

Follow-up to I77dd45eb.

Bug: 56115
Change-Id: I17bd160577e6b287cc5a61e2a3b983b035c87f81

diff --git a/includes/specials/SpecialContributions.php b/includes/specials/SpecialContributions.php
index 0f910a5..1fe9819 100644 (file)
--- a/includes/specials/SpecialContributions.php
+++ b/includes/specials/SpecialContributions.php
@@ -954,7 +954,7 @@ class ContribsPager extends ReverseChronologicalPager {
                        } else {
                                $parentLen = 0;
                                if ( isset( $this->mParentLens[$row->rev_parent_id] ) ) {
-                                       $this->mParentLens[$row->rev_parent_id];
+                                       $parentLen = $this->mParentLens[$row->rev_parent_id];
                                }
 
                                $chardiff = ' <span class="mw-changeslist-separator">. .</span> ';