ns_tree.is_root doesn't to extra calls to get_root
ns_tree.is_root doesn't to extra calls to get_root

velfimov/django-treebeard,kazmiruk/django-treebeard,albedoweb/django-treebeard,kazmiruk/django-treebeard,kazmiruk/django-treebeard,kazmiruk/django-treebeard,albedoweb/django-treebeard,torchbox/django-treebeard,torchbox/django-treebeard,albedoweb/django-treebeard,velfimov/django-treebeard,velfimov/django-treebeard,torchbox/django-treebeard,velfimov/django-treebeard,albedoweb/django-treebeard