Number of comments and participants in the summary and thread views are not updated.
Since enabling memcached in Django via
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.memcached.PyLibMCCache',
        'LOCATION': '127.0.0.1:11211',
    }
}
the number of comments and participants in the summary and thread views are not updated. unless django-admin hyperkitty_warm_up_cache is run and memcached is restarted.
This is with all commits through 868f15a0
Edited  by Mark Sapiro