gao-yan/pacemaker — comment on commit df705e11a105b67db1c70e7374f3304163177c62
File: pengine/constraints.c line 1128
By beekhof:

Why you're doing this, instead of calling free_xml_from_parent() immediately, is definitely worthy of a comment.
I'm not saying its wrong, just that its sufficiently non-obvious to those who haven't done battle with libxml2 to deserve a comment :)