Writing /opt/bitnami/dokuwiki/data/meta/python/django_include_exclude_m2m_none.meta failed
Writing /opt/bitnami/dokuwiki/data/meta/git/delete-tag.meta failed
Unable to save metadata file. Hint: disk full; file permissions; safe_mode setting.
https://stackoverflow.com/questions/4184558/django-query-filter-on-manytomany-is-empty
class TestModel(models.Model): name = models.CharField(_('set name'), max_length=200) manytomany = models.ManyToManyField('AnotherModel', blank=True, null=True) TestModel.objects.filter(manytomany=None) TestModel.objects.exclude(manytomany=None)