some extension dialogs do not remain on top

Summary:

Extension dialogs, like in past versions, should stay on top until the user closes them. But in 1.5, some of them do not stay on top. Any click in either the dialog or on the canvas, and the dialog gets minimized. Examples: Generate from Path > Pattern Along Path minimizes with every click. Also Generate from Path > Long Shadow. But Render > Spirograph behaves normally, and stays on top.

Steps to reproduce:

• open Inkscape
• draw some object
• Extensions menu > Generate from Path > Long Shadow
• click Live Preview
• click the plus or minus button in Long Shadow dialog once or twice
• or test Pattern Along Path in the same way

What happened?

The dialog disappears. It was minimized.

What should have happened?

It should have stayed on top.

Sample attachments:

Let's see if I can make a video....

extn_dia_min

Edit: Possibly this is related to another report I made, because the same extension dialogs are involved in both problems. #12857 Or, maybe just a coincidence?

Inkscape 1.5-dev (deb5623, 2025-10-26)

                      Compile  (Run)
    GLib version:     2.80.0
    GTK version:      4.14.5 (4.14.5)
    glibmm version:   2.78.1
    gtkmm version:    4.14.0
    libxml2 version:  2.9.14
    libxslt version:  1.1.39
    Cairo version:    1.18.0 (1.18.0)
    Pango version:    1.52.1 (1.52.1)
    HarfBuzz version: 8.3.0 (8.3.0)
    Poppler version:  24.02.0

    OS version:       Linux Mint 22

Let me know if you need anything else. This might be related with another issue, that I'm going to report right after I finish this one.

Thanks!