See bt https://bugs.documentfoundation.org/attachment.cgi?id=137222
3  0x00007fffebe196b7 in vcl::Window::GrabFocus() (this=0x0) at /tinderbox/buildslave/source/libo-master/vcl/source/window/window.cxx:3003
4  0x00007fffee473602 in FileControl::GetFocus() (this=0x28760b0) at /tinderbox/buildslave/source/libo-master/svtools/source/control/filectrl.cxx:177
5  0x00007fffebe1c99b in vcl::Window::CompatGetFocus() (this=0x28760b0) at /tinderbox/buildslave/source/libo-master/vcl/source/window/window.cxx:3694
6  0x00007fffebd62672 in vcl::Window::ImplGrabFocus(GetFocusFlags) (this=0x28760b0, nFlags=GetFocusFlags::NONE) at /tinderbox/buildslave/source/libo-master/vcl/source/window/mouse.cxx:377
7  0x00007fffebe196b7 in vcl::Window::GrabFocus() (this=0x28760b0) at /tinderbox/buildslave/source/libo-master/vcl/source/window/window.cxx:3003
8  0x00007fffebe0bfc5 in vcl::Window::dispose() (this=0x28778b0) at /tinderbox/buildslave/source/libo-master/vcl/source/window/window.cxx:449
9  0x00007fffebe6536c in Control::dispose() (this=0x28778b0) at /tinderbox/buildslave/source/libo-master/vcl/source/control/ctrl.cxx:65
10 0x00007fffebe6a4b6 in Edit::dispose() (this=0x28778b0) at /tinderbox/buildslave/source/libo-master/vcl/source/control/edit.cxx:265
11 0x00007fffebfa5ac0 in VclReferenceBase::disposeOnce() (this=0x2877bc8) at /tinderbox/buildslave/source/libo-master/vcl/source/outdev/vclreferencebase.cxx:42
12 0x00007fffee41f948 in VclPtr<Edit>::disposeAndClear() (this=0x28762c0) at /tinderbox/buildslave/source/libo-master/include/vcl/vclptr.hxx:208
13 0x00007fffee472f0e in FileControl::dispose() (this=0x28760b0) at /tinderbox/buildslave/source/libo-master/svtools/source/control/filectrl.cxx:89

Change-Id: I97fd3679a8692893047c22ff3e452a5c3e3f25c3
Reviewed-on: https://gerrit.libreoffice.org/43731Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>