Error in compiling submodule tree.

Good day everyone.

I have a problem in compiling a module-submodule tree where submodules include other submodules. For instance the following snippet fails to compile with ifort 17.1:

module leader
end module leader
submodule(leader) officer
end submodule         officer
submodule(officer) member
end submodule          member

giving the following error message:

error #8765: Error in opening the compiled ancestor module file.   [OFFICER]
      submodule(officer) member
----------------^

Am I missing something here? Or is this a bug?

Thanks in advance!