System menu stacks when triggered multiple times or after other menu is open

[JavierBertolino]

When triggering theSystem menu (which uses Walker) via SUPER + ESC especially while another menu (or the same one) is still open causes multiple Walker instances to stack. This results in:

• The prompt sometimes showing "Go…" instead of "System…".
• Menu item results appearing replicated multiple times when searching for a term

It appears that Walker does not enforce a single-instance UI, so repeated bindd triggers spawn new processes without closing the existing one.

Video evidence
https://github.com/user-attachments/assets/b68a861f-e395-4e75-9f0c-f51487d999df

Environment

Steps to reproduce:

1. Open the system menu with SUPER + ESC
2. Press again SUPER + ESC and you will see how the placeholder changes from "System…" to "Go…"
3. Search for a term like "Suspend" and notice how it appears multiple times

[abenz1267]

whats the output of walker -v. You are most likely just running an outdated version of Walker.

[dhh]

Please reopen if you're seeing this on Walker 0.13.25 or newer.