Bug report for ifort 17.0: elemental function result

According to f2003 constraint C1279 and f2008 corrigenda constraint C1290b but
not the original version of f2008, an elemental function result may not have a
type parameter that depends on the value of a dummy argument in the way that
my test program uses. If this were allowed, the print statement in the program
would attempt to construct a character array whose elements were of different
lengths.   

"C1290b In the specification-expr that specifies a type parameter value of the 
result of an elemental function, an object designator with a dummy argument of 
the function as the base object shall appear only as the subject of a 
specification inquiry, and that specification inquiry shall not depend on a 
property that is deferred."

The program:

module elemfunc ! Valid f2003? f2008?
  implicit none
contains
  pure elemental function rep(n,  s)
    integer,intent(in) ::     n
    character(*),intent(in)::     s
    character(n*len(s)):: rep
    rep = repeat(s,n)
  end function rep
end module elemfunc

program testelem
  use elemfunc,only:rep
  implicit none
  print *,'"',rep([2,3],'?'),'"'
end program testelem

What ifort did with it:

cayley[~/Jfh] % ifort -V testelem2.f90; ./a.out
Intel(R) Fortran Intel(R) 64 Compiler for applications running on Intel(R) 64, Version 17.0.0.098 Build 20160721
Copyright (C) 1985-2016 Intel Corporation.  All rights reserved.
FOR NON-COMMERCIAL USE ONLY

 Intel(R) Fortran 17.0-1589
GNU ld (GNU Binutils) 2.29.1
 ""
cayley[~/Jfh] %