gnucash master: Multiple changes pushed

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/35dd8dbf (commit)
	 via  https://github.com/Gnucash/gnucash/commit/329a2f7d (commit)
	from  https://github.com/Gnucash/gnucash/commit/58146dac (commit)



commit 35dd8dbf069e8e3e37e86f6f2b41ef59ea084bad
Merge: 58146dacce 329a2f7d42
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Mar 10 12:48:51 2023 -0800

    Merge Richard Cohen's 'guard-against-null-dereference' into master.

commit 329a2f7d4249c43e9baebd528b4ab3c3396d4e49
Author: Richard Cohen <richard at daijobu.co.uk>
Date:   Thu Mar 2 12:31:03 2023 +0000

    Guard against some possible null pointer dereferences
    
    Found by gcc 12 when compiling with "-O2 -Wnull-dereference"



Summary of changes:
 bindings/guile/gnc-kvp-guile.cpp                     | 4 ++--
 gnucash/gnome-search/search-core-type.c              | 4 +++-
 gnucash/gnome/gnc-plugin-page-owner-tree.c           | 6 +++++-
 gnucash/report/gnc-report.cpp                        | 3 +++
 libgnucash/app-utils/calculation/expression_parser.c | 7 +++++--
 libgnucash/engine/gnc-date.cpp                       | 2 ++
 libgnucash/engine/qofquery.cpp                       | 3 ++-
 7 files changed, 22 insertions(+), 7 deletions(-)