"test 351: cli_actions-verb-list" fails with DBUS enabled

Summary:

"test 351: cli_actions-verb-list" fails on inkscape git master on debian x86-64 bookworm

Steps to reproduce:

        ninja -j4 install && \
        ninja -j4 check \
        ; n --msg "Inkscape build finished"

What happened?

The tests failed:

        Start 350: cli_actions-user-data-directory                                      
350/391 Test #350: cli_actions-user-data-directory .....................................
   Passed    0.52 sec                                                                   
        Start 351: cli_actions-verb-list                                                
351/391 Test #351: cli_actions-verb-list ...............................................
SIGTRAP***Exception:   0.54 sec                                                         
                                                                                        
** (org.inkscape.Inkscape:666382): WARNING **: 13:14:35.671: Metadata for error domain "
inkscape_error" already registered                                                      
                                                                                        
                                                                                        
** (org.inkscape.Inkscape:666382): ERROR **: 13:14:35.671: Failed to register GObject wi
th DBusConnection: org.freedesktop.DBus.Error.ObjectPathInUse A handler is already regis
tered for /org/inkscape/application                                                     
                                                                                        
        Start 352: cli_import_cdr2                                                      
352/391 Test #352: cli_import_cdr2 .....................................................
   Passed    0.58 sec                                                                   
        Start 353: cli_import_cdr2_check_output                                         
353/391 Test #353: cli_import_cdr2_check_output ........................................

What should have happened?

...

Sample attachments:

Version info

Inkscape 1.2-dev (5df8986afe, 2021-09-15)

    GLib version:     2.68.4
    GTK version:      3.24.30
    glibmm version:   2.64.2
    gtkmm version:    3.24.5
    libxml2 version:  2.9.10
    libxslt version:  1.1.34
    Cairo version:    1.16.0
    Pango version:    1.48.9
    HarfBuzz version: 2.7.4

    OS version:       Debian GNU/Linux bookworm/sid