Crash in __gio_xdg_cache_mime_type_subclass

I only can produce this by setting set_initial_folder to my home folder. But also only crashes 75% of the time.

It's not happening on my host but it happens on nightly. So it might be something that was introduced in 4.13.

Has someone a spontaneous idea or does this need more tracing?

double free or corruption (fasttop)

#0  0x00007ffff6b95e14 in __pthread_kill_implementation () at /usr/lib/x86_64-linux-gnu/libc.so.6
#1  0x00007ffff6b43dce in raise () at /usr/lib/x86_64-linux-gnu/libc.so.6
#2  0x00007ffff6b2b83f in abort () at /usr/lib/x86_64-linux-gnu/libc.so.6
#3  0x00007ffff6b2c710 in _IO_peekc_locked.cold () at /usr/lib/x86_64-linux-gnu/libc.so.6
#4  0x00007ffff6b9ffd5 in  () at /usr/lib/x86_64-linux-gnu/libc.so.6
#5  0x00007ffff6ba21f2 in _int_free () at /usr/lib/x86_64-linux-gnu/libc.so.6
#6  0x00007ffff6ba4bbe in free () at /usr/lib/x86_64-linux-gnu/libc.so.6
#7  0x00007ffff7c8d82d in __gio_xdg_cache_mime_type_subclass () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007ffff7c110ae in g_content_type_is_a () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#9  0x00007ffff6f70ae2 in gtk_file_filter_match () at /usr/lib/x86_64-linux-gnu/libgtk-4.so.1
#10 0x00007ffff7133e97 in node_compute_visibility_and_filters () at /usr/lib/x86_64-linux-gnu/libgtk-4.so.1
#11 0x00007ffff71342e3 in thaw_updates () at /usr/lib/x86_64-linux-gnu/libgtk-4.so.1
#12 0x00007ffff7134c91 in gtk_file_system_model_got_files () at /usr/lib/x86_64-linux-gnu/libgtk-4.so.1
#13 0x00007ffff7ba58c7 in next_async_callback_wrapper () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#14 0x00007ffff7bef93b in g_task_return_now () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#15 0x00007ffff7bef975 in complete_in_idle_cb () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#16 0x00007ffff7a38f17 in g_main_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0