Clear change log to prevent from undo/redo. - commit the transaction after changing DOM-tree. - prevent SPObject document from adding changes into the log of undo/redo. - If a changes is not in the log of undo/redo, it would not be redo.

<project>
	<scene src='list.mbsvg' />
	<source src='main.c'/>
	<source src='%n.c'/>
	<source src='%n.h'/>
	<source src='Makefile'/>
</project>