Description of problem:
I click `incus` with tab key to invoke shell completion then it encountered crash.

Version-Release number of selected component:
incus-client-6.2-3.fc41

Additional info:
reporter:       libreport-2.17.15
type:           CCpp
reason:         incus killed by SIGABRT
journald_cursor: s=8a2b7c0424b545c491454e0015fc6e33;i=2530b9;b=a94f1656b4f74a32ae8ed2bbb345356a;m=22e4ea20c1;t=627c07fd9284f;x=47ef7bd48b76d1cb
executable:     /usr/bin/incus
cmdline:        incus __complete launch
cgroup:         0::/user.slice/user-1000.slice/user/app.slice/app-org.gnome.Terminal.slice/vte-spawn-91d3780d-654a-421c-87da-93e60333adf0.scope
rootdir:        /
uid:            1000
kernel:         6.11.7-300.fc41.x86_64
package:        incus-client-6.2-3.fc41
runlevel:       N 5
comment:        I click `incus` with tab key to invoke shell completion then it encountered crash.
backtrace_rating: 4
crash_function: runtime.raise

Truncated backtrace:
Thread no. 1 (20 frames)
 #0 runtime.raise at /usr/lib/golang/src/runtime/sys_linux_amd64.s:154
 #1 runtime.dieFromSignal at /usr/lib/golang/src/runtime/signal_unix.go:942
 #2 runtime.sigfwdgo at /usr/lib/golang/src/runtime/signal_unix.go:1154
 #3 runtime.sigtrampgo at /usr/lib/golang/src/runtime/signal_unix.go:432
 #4 runtime.sigtramp at /usr/lib/golang/src/runtime/sys_linux_amd64.s:352
 #6 runtime.raise at /usr/lib/golang/src/runtime/sys_linux_amd64.s:154
 #7 runtime.dieFromSignal at /usr/lib/golang/src/runtime/signal_unix.go:942
 #8 runtime.crash at /usr/lib/golang/src/runtime/signal_unix.go:1031
 #9 runtime.fatalpanic at /usr/lib/golang/src/runtime/panic.go:1290
 #10 runtime.gopanic at /usr/lib/golang/src/runtime/panic.go:804
 #11 runtime.panicmem at /usr/lib/golang/src/runtime/panic.go:262
 #12 runtime.sigpanic at /usr/lib/golang/src/runtime/signal_unix.go:900
 #13 main.(*cmdGlobal).cmpImages at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/cmd/incus/completion.go:186
 #14 main.(*cmdLaunch).Command.func1 at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/cmd/incus/launch.go:49
 #15 github.com/lxc/incus/vendor/github.com/spf13/cobra.(*Command).getCompletions at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/vendor/github.com/spf13/cobra/completions.go:515
 #16 github.com/lxc/incus/vendor/github.com/spf13/cobra.(*Command).initCompleteCmd.func1 at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/vendor/github.com/spf13/cobra/completions.go:206
 #17 github.com/lxc/incus/vendor/github.com/spf13/cobra.(*Command).execute at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/vendor/github.com/spf13/cobra/command.go:987
 #18 github.com/lxc/incus/vendor/github.com/spf13/cobra.(*Command).ExecuteC at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/vendor/github.com/spf13/cobra/command.go:1115
 #19 github.com/lxc/incus/vendor/github.com/spf13/cobra.(*Command).Execute at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/vendor/github.com/spf13/cobra/command.go:1039
 #20 main.main at /usr/src/debug/incus-6.2-3.fc41.x86_64/_build/src/github.com/lxc/incus/cmd/incus/main.go:302