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diff --git a/maintenance/language/generateCollationData.php b/maintenance/language/generateCollationData.php
index 97b46f7302..210e907264 100644
--- a/maintenance/language/generateCollationData.php
+++ b/maintenance/language/generateCollationData.php
@@ -247,11 +247,7 @@ class GenerateCollationData extends Maintenance {
 			if ( $weight !== $prevWeight ) {
 				$this->groups[$prevWeight] = $group;
 				$prevWeight = $weight;
-				if ( isset( $this->groups[$weight] ) ) {
-					$group = $this->groups[$weight];
-				} else {
-					$group = [];
-				}
+				$group = $this->groups[$weight] ?? [];
 			}
 			$group[] = $cp;
 		}
@@ -263,7 +259,7 @@ class GenerateCollationData extends Maintenance {
 		// character has a longer primary weight sequence with an initial
 		// portion equal to the first character, then remove the second
 		// character. This avoids having characters like U+A732 (double A)
-		// polluting the basic latin sort area.
+		// polluting the basic Latin sort area.
 
 		foreach ( $this->groups as $weight => $group ) {
 			if ( preg_match( '/(\.[0-9A-F]*)\./', $weight, $m ) ) {