gnucash stable: [Scrub.cpp] don't create intermediate GHashTable and GList

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/f65f8770 (commit)
	from  https://github.com/Gnucash/gnucash/commit/a84189b7 (commit)



commit f65f877098a15c14d3342fd7b5c4e266dcd40cfb
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Tue Jul 2 22:17:13 2024 +0800

    [Scrub.cpp] don't create intermediate GHashTable and GList
    
    use unordered_set instead



Summary of changes:
 libgnucash/engine/Scrub.cpp | 50 ++++++++++++++++++++-------------------------
 1 file changed, 22 insertions(+), 28 deletions(-)