When I start dolphin with the following command line it always crashes when I close this instance:
dolphin -qwindowtitle root -qwindowicon folder-red

Application: dolphin (dolphin), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007fe0c832f074 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#7  0x00007fe0c58bdc89 in QHashData::free_helper (this=0x1dcb0a0, node_delete=0x7fe0c832f070) at tools/qhash.cpp:491
#8  0x00007fe0c832af95 in KIconLoader::~KIconLoader() () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#9  0x00007fe0c832b129 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5IconThemes.so.5
#10 0x00007fe0cac3efe8 in __run_exit_handlers (status=0, listp=0x7fe0cafc85f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#11 0x00007fe0cac3f035 in __GI_exit (status=<optimized out>) at exit.c:104
#12 0x00007fe0cac25837 in __libc_start_main (main=0x400710 <main>, argc=5, argv=0x7fffcae4ad18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffcae4ad08) at ../csu/libc-start.c:325
#13 0x0000000000400749 in _start ()

Unfortunately I cannot install the libkf5iconthemes-dbg package, because in kubuntu backports ppa this package is missing.



Reproducible: Always