gnucash maint: Bug 797481 - crash on close of unsaved tabs by pressing [X]

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/b5fdcfcb (commit)
	from  https://github.com/Gnucash/gnucash/commit/d409d009 (commit)



commit b5fdcfcb5b31a639d82cc79920ecf830c33ec450
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Jan 3 13:13:55 2020 -0800

    Bug 797481 - crash on close of unsaved tabs by pressing [X]
    
    Use g_object_weak_ref() to null GncItemEdit::sheet to prevent
    a use-after-free crash.
    
    Note that this is a band-aid fix. To fix correctly GncItemEdit and probably
    most of the rest of the register must be rewritten with modern GObject
    macros and resource management.



Summary of changes:
 .../register/register-gnome/gnucash-item-edit.c    | 40 ++++++++++++++++++++--
 1 file changed, 38 insertions(+), 2 deletions(-)