XPCE editor crashes when closed with an open menu

[wouterbeek]

Steps to reproduce:

1. Open the XPCE editor with ?- edit.
2. Right click, e.g., on a predicate name. A menu opens.
3. Close the editor window. Observe that the open menu is still there.
4. Interact with the menu or try to abort SWI brings up the following stack trace:

SWI-Prolog [thread 1 (main) at Wed Aug 16 17:31:24 2017]: received fatal signal 11 (segv)
C-stack trace labeled "crash":
  [0] save_backtrace() at /home/wbeek/git/swipl-devel/src/os/pl-cstack.c:338 [0x7fe340cb2912]
  [1] print_c_backtrace() at /home/wbeek/git/swipl-devel/src/os/pl-cstack.c:906 [0x7fe340cb2ade]
  [2] crashHandler() at /home/wbeek/git/swipl-devel/src/os/pl-cstack.c:495 [0x7fe340cb2bbd]
  [3] dispatch_signal() at /home/wbeek/git/swipl-devel/src/pl-setup.c:514 [0x7fe340c5523f]
  [4] __restore_rt() at ??:? [0x7fe3409b4670]
  [5] PL_next_solution() at /home/wbeek/git/swipl-devel/src/pl-vmi.c:4289 [0x7fe340bf5e87]
  [6] query_loop() at /home/wbeek/git/swipl-devel/src/pl-pro.c:139 [0x7fe340c3ba2b]
  [7] prologToplevel() at /home/wbeek/git/swipl-devel/src/pl-pro.c:453 [0x7fe340c3c26b]
  [8] PL_toplevel() at /home/wbeek/git/swipl-devel/src/pl-fli.c:4381 [0x7fe340bf36fd]
  [9] /home/wbeek/bin/swipl(main+0x15) [0x5639d6b3d825]
  [10] __libc_start_main() at ??:? [0x7fe3405fc3f1]
  [11] /home/wbeek/bin/swipl(_start+0x2a) [0x5639d6b3d86a]

[xpxaxsxi]

I tried to reproduce the crash in Windows 10 (threaded, 64 bits, version 9.1.6) ... I can't reproduce. Maybe it is fixed @wouterbeek