bug#24651: 25.1; frame-inherited-parameters only partially works

[martin rudalics]

> So it seems like something is going wrong when doing the inherited
> height parameter -- it's not initialising everything the correct way.
>
> Anybody got an insight here?

The implementation is overly optimistic.  Doing, for example,

    (when frame-inherited-parameters
      (sit-for 0.5)
      (dolist (param frame-inherited-parameters)
        (unless (assq param parameters)
          (let ((val (frame-parameter oldframe param)))
            (when val (set-frame-parameter frame param val))))))

works here.  I see two ways to fix this.  Add such a timeout or, more
cleanly, merge the inherited parameters into 'params' _before_ calling
`frame-creation-function'.  As a rule, never fiddle with frame sizes or
positions before the WM got back to us with the new frame.

martin