Segfault in widgetsboxmodel.so on Qt 6.10.1 (Arch/Manjaro)

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Environment

• Albert version: 34.0.10
• Qt version: 6.10.1
• OS: Manjaro Linux (kernel 5.10.248-1-MANJARO)
• DE/WM: AwesomeWM
• Session: X11
• Package source: Official repo (home:manuelschneid3r/Arch)

Bug

Albert segfaults immediately on launch. Clean config (no ~/.config/albert) still crashes.

Log output

[crit:albert] Albert has not been terminated properly. Please check your logs and report an issue.
[info:albert] Searching native plugins in /usr/lib/albert
[warn:qt.core.qobject.connect] QObject::connect(albert::PluginInstance, QEventLoop): invalid nullptr parameter
fish: Job 1, 'albert' terminated by signal SIGSEGV (Address boundary error)

Debugging

Narrowed down the crash to widgetsboxmodel.so:

1. No plugins (-p /empty/dir) → no crash, exits with "Could not load any frontend"
2. Only widgetsboxmodel.so → segfault with the same QObject::connect nullptr error
3. Only application.so → no crash, exits with "no frontend"

So the crash is triggered specifically when loading widgetsboxmodel.so on Qt 6.10.1.

Steps to reproduce

1. Install Albert 34.0.10 on Arch/Manjaro with Qt 6.10.1
2. Remove ~/.config/albert for clean state
3. Run albert
4. Immediate SIGSEGV

Expected behavior

Albert should launch normally.