[postcreate] properly set is_instance_of for bootstrap entities
Entities created before CWEType itself need the is/is_instance_of
relations created later. We were actually only inserting "is".
Closes #7656606.
include *.py
include */*.py
recursive-include data *.gif *.png *.ico *.css *.js
recursive-include i18n *.po
recursive-include wdoc *