[Ubuntu/Debian]: window size parameters not applied correctly when service is reused quickly

[Kasui92]

Describe the bug
When using walker as a GApplication service (--gapplication-service) in Ubuntu/Debian, opening that with different --maxheight/--minheight values in quick succession results in the second invocation being silently capped to the dimensions of the first one.

fe.

# First invocation with small height
walker --maxheight 300 --minheight 300

# Close it, then immediately open with larger height
walker --dmenu --maxheight 630 --minheight 1

The second window appears capped at 300px instead of 630px.

Configs
Same setup as Omarchy.

I installed Walker, Elephant and gtk4-layer-shell.

Desktop (please complete the following information):

• OS: Ubuntu 24.04
• Walker version: 2.15.2
• Elephant version: 2.20.2