Segfaults with --batch-process
#### Steps to reproduce:
run `inkscape --batch-process` somewhere without a GUI system available (a chroot is enough)
#### What happened?
```
root@warren:/# gdb --args inkscape --batch-process
[...]
Reading symbols from inkscape...
Reading symbols from /usr/lib/debug/.build-id/85/f36d8d1c35f51a49dbcfa33f6645be96046ec8.debug...
(gdb) r
Starting program: /usr/bin/inkscape --batch-process
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
No protocol specified
Unable to init server: Could not connect: Connection refused
[New Thread 0x7fffef4c8640 (LWP 2720797)]
[New Thread 0x7fffeecc7640 (LWP 2720798)]
[New Thread 0x7fffee4c6640 (LWP 2720799)]
[New Thread 0x7fffedc54640 (LWP 2720800)]
(inkscape:2720793): Gtk-CRITICAL **: 16:00:25.434: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Thread 1 "inkscape" received signal SIGSEGV, Segmentation fault.
Gtk::IconTheme::prepend_search_path (this=0x0, path=...) at ../untracked/gtk/gtkmm/icontheme.cc:294
294 ../untracked/gtk/gtkmm/icontheme.cc: No such file or directory.
(gdb) bt full
#0 Gtk::IconTheme::prepend_search_path (this=0x0, path=...) at ../untracked/gtk/gtkmm/icontheme.cc:294
No locals.
#1 0x00007ffff77e285e in Inkscape::Application::Application (this=0x555555606bd0, use_gui=<optimized out>) at ./src/inkscape.cpp:229
icon_theme = {pCppObject_ = 0x0}
ui_language = {static npos = 18446744073709551615, string_ = "export-id-only"}
fontdirs_pref = {static npos = 18446744073709551615, string_ = "p'`UUU\000\000@\250`UUU\000"}
prefs = <optimized out>
handler = <optimized out>
factory = <optimized out>
Python Exception <class 'gdb.error'> value has been optimized out:
fontdirs =
prefs = <optimized out>
handler = <optimized out>
ui_language = {static npos = 18446744073709551615, Python Exception <class 'gdb.error'> value has been optimized out:
string_ = }
factory = <optimized out>
fontdirs_pref = {static npos = 18446744073709551615, Python Exception <class 'gdb.error'> value has been optimized out:
string_ = }
Python Exception <class 'gdb.error'> value has been optimized out:
fontdirs =
msg = {static npos = 18446744073709551615, Python Exception <class 'gdb.error'> value has been optimized out:
string_ = }
secondary = {static npos = 18446744073709551615, Python Exception <class 'gdb.error'> value has been optimized out:
string_ = }
icon_theme = {pCppObject_ = <optimized out>}
fontsdir = <optimized out>
fontsdir = <optimized out>
fontdir = <optimized out>
__for_range = <optimized out>
Python Exception <class 'gdb.error'> value has been optimized out:
__for_begin =
Python Exception <class 'gdb.error'> value has been optimized out:
__for_end =
#2 0x00007ffff77e31c0 in Inkscape::Application::create (use_gui=<optimized out>) at ./src/inkscape.cpp:162
No locals.
#3 0x00007ffff788003a in InkscapeApplication::on_startup2 (this=0x5555555aa770) at ./src/inkscape-application.cpp:719
gapp = <optimized out>
#4 0x00007ffff788c644 in InkscapeApplication::on_activate (this=0x5555555aa770) at ./src/inkscape-application.cpp:957
output = ""
document = <optimized out>
prefs = <optimized out>
#5 0x00007ffff6262c98 in Glib::SignalProxyNormal::slot0_void_callback(_GObject*, void*) () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
No symbol table info available.
#6 0x00007ffff549e6df in g_closure_invoke () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgobject-2.0.so.0
No symbol table info available.
#7 0x00007ffff54b0d11 in ?? () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgobject-2.0.so.0
No symbol table info available.
#8 0x00007ffff54b6f51 in g_signal_emit_valist () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgobject-2.0.so.0
No symbol table info available.
#9 0x00007ffff54b74ff in g_signal_emit () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgobject-2.0.so.0
No symbol table info available.
#10 0x00007ffff55c5e88 in ?? () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgio-2.0.so.0
No symbol table info available.
#11 0x00007ffff55c5ffe in g_application_run () from /usr/bin/../lib/x86_64-linux-gnu/inkscape/../libgio-2.0.so.0
No symbol table info available.
--Type <RET> for more, q to quit, c to continue without paging--
#12 0x00007ffff5e38e4a in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#13 0x0000555555556eba in _start ()
No symbol table info available.
(gdb)
```
#### Inkscape Version and Operating System:
- Inkscape Version: 1.1.1-2
- Operating System: Debian sid
FTR, I found #541 that is the very same issue, that was seemingly already fixed with https://gitlab.com/inkscape/inkscape/-/commit/6779967743bd8a3676cdc61f79706201d3e5f5d3 (!1079), but it looks like it regressed again (the relevant commit was later "overwrote" with other changes, I didn't follow it fully).
issue