bug#59377: 29.0.50; Sticky frame parameter has no effect

[Michael Heerdegen]

Hello,

Debian and Openbox on X here.

When I set the `sticky` frame parameter of a frame to non-nil, like in

(display-buffer (get-buffer-create "Test")
                `(display-buffer-pop-up-frame
                  ( pop-up-frame-parameters
                    (sticky . t) (minibuffer . nil))))

there is no effect - the frame is only displayed on the current virtual
desktop.  Same when I explicitly set the frame parameter of an existing
frame, e.g. with

  (set-frame-parameter nil 'sticky t)

I would have expected that this works with Openbox.

TIA,

Michael.