lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ת' inside character alternative (pos 23)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   .......................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ק' inside character alternative (pos 24)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ........................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ר' inside character alternative (pos 26)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ..........................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ת' inside character alternative (pos 27)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ...........................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ש' inside character alternative (pos 28)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ............................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ת' inside character alternative (pos 30)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ..............................^
lisp/mail/footnote.el:366:3: In footnote-hebrew-numeric-regex: Duplicated `ת' inside character alternative (pos 32)
  "[אבגדהוזחטיכלמנסעפצקרשתתקתרתשתתתתק']+"
   ................................^