>
> I opened the latest Org git repo, ran make repro, opened the file,
> clicked on "tangle" link, moved to the linked source code, and executed
> it. It worked.
>
> So, I am unable to reproduce the problem on my system.
>

Hello Ihor,

Thanks for investigating.  Can you please post your tangled file named
circle.f90.

Mine looks like this

    program main
    MODULE Circle
          implicit None
          public :: area
    contains
          function area(r)
          implicit none
          real, intent(in) :: r
          real :: area
          area = 3.14159 * r**2
          return
          end function area
    END MODULE Circle
    end program main

which is broken because org/babel has added the first and last lines.

Thanks,

Paul