bad characters in page titles on Commons

SQL

USE commonswiki_p;
SET @u200B = CONCAT('%', CHAR(0xE2808B USING utf8mb3), '%'); #zero width space
SET @u200C = CONCAT(CHAR(0xE2808C USING utf8mb3), '%'); #zero width space
SET @u200D = CONCAT(CHAR(0xE2808D USING utf8mb3), '%'); #zero width space
SELECT CONCAT('# [[:{{ns:', page_namespace, '}}:', REPLACE(page_title, '_', ' '), ']]',
              IF(page_title LIKE @u200B, ' U+200B zero width space', ''),
              IF(page_title LIKE @u200C, ' U+200C leading zero width non-joiner', ''),
              IF(page_title LIKE @u200D, ' U+200D leading zero width joiner', ''),
              IF(page_title LIKE '%‎%', ' U+200E LTR mark', ''),
              IF(page_title LIKE '%‏%', ' U+200F RTL mark', ''),
              IF(page_title LIKE '%%', ' U+FEFF BOM', ''),
              IF(page_title LIKE '%%', ' U+FFFC ', ''),
              IF(page_title LIKE '%�%', ' U+FFFD �', ''))
FROM page
WHERE (page_namespace % 2) = 0
AND page_is_redirect = 0/*
AND (page_title LIKE '%%' #ZWSP U+200B (E2 80 8B)
  OR page_title LIKE '‌%'  #ZWNJ U+200C (E2 80 8C)
  OR page_title LIKE '‍%'  #ZWJ U+200D (E2 80 8D)
  OR page_title LIKE '%‎%' #LTR U+200E (E2 80 8E)
  OR page_title LIKE '%‏%' #RTL U+200F (E2 80 8F)
  OR page_title LIKE '%%' #BOM U+FEFF (EF BB BF)
  OR page_title LIKE '%%'  #OBJ REPL CHAR U+FFFC (EF BF BC)
  OR page_title LIKE '%�%') #REPL CHAR     U+FFFD (EF BF BD)*/
#AND page_title REGEXP @u200B
AND (page_title LIKE @u200B OR page_title LIKE @u200C OR page_title LIKE @u200D)
AND page_id NOT IN (SELECT cl_from FROM categorylinks WHERE cl_to = 'Category_redirects')
LIMIT 100;
SQL

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