Index: includes/Linker.php
===================================================================
--- includes/Linker.php	(revision 84801)
+++ includes/Linker.php	(working copy)
@@ -1518,8 +1518,12 @@
 		if ( $trail !== '' ) {
 			$m = array();
 			if ( preg_match( $regex, $trail, $m ) ) {
-				$inside = $m[1];
-				$trail = $m[2];
+				// bug 27473: If there are two or more apostrophes in a row in the
+				// linktrail, put them outside the link. This could be handled in the
+				// localized regexes, but is safer to do here.
+				$pos = strpos( $m[1], "''" );
+				$inside = $pos === false ? $m[1] : substr( $m[1], 0, $pos );
+				$trail = $pos === false ? $m[2] : substr( $m[1], $pos ) . $m[2];
 			}
 		}
 		return array( $inside, $trail );