bug#25511: 26.0.50; modify-frame-parameters modifies undesignated parameter?

[npostavs]

martin rudalics <rudalics@gmx.at> writes:

>> Thanks for the suggestions about ‘after-make-frame-functions’,
>> ‘frame-inhibit-implied-resize’, and others.  I didn't recall
>> I've been using ‘after-make-frame-functions’ for the other
>> purposes. ;-)  I'll try them one by one from now on.  Anyway, I
>> concluded I should not use dirty codes such as advising the core
>> functions, as much as possible.
>
> Advising is no problem per se.  But ‘after-make-frame-functions’ is
> there so it's better to use it (and along the way find out if there are
> any problems with it).  Obviously, my proposal to use the workarea won't
> work for Cygwin anyway, given you figures above.

Is there something more to do with this bug?