time that the book transitioned from clean to dirty, and for calling
back a registered function when the book transitions from clean to
dirty.
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@13931 57a11ea4-9604-0410-9ed3-97b8803252fd
collections. In this mode, marking an instance as dirty does not
immediately mark the collection as dirty. The collection is only
dirtied when a dirty instance is actually committed to the collection.
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@13926 57a11ea4-9604-0410-9ed3-97b8803252fd
