Disable LDAP TLS connection

Some ownCloud users experience an issue when already switched off 'SSL certificate validation' in ownCloud Administration GUI doesn't cause changes in database.
It leads to errors in /usr/share/webapps/owncloud/data/owncloud.log:

{
"reqId":"abc1ac1020dbda66970651f039359229",
"remoteAddr":"94.127.178.121",
"app":"PHP",
"message":"ldap_start_tls(): Unable to start TLS: Connect error at \/usr\/share\/webapps\/owncloud\/apps\/user_ldap\/lib\/ldap.php#252",
"level":3,
"time":"2015-06-01T07:34:37+00:00"
}
{
"reqId":"abc1ac1020dbda66970651f039359229",
"remoteAddr":"94.127.178.121",
"app":"user_ldap",
"message":"Bind failed: -1: Can't contact LDAP server",
"level":3,
"time":"2015-06-01T07:34:37+00:00"
}

You can verify actual configuration stored in database with command:

(inside container):

mysql -e "select * from oc_appconfig where configkey='ldap_tls';" ocdb;

(outside container, oc - container name):

docker exec oc mysql -e "select * from oc_appconfig where configkey='ldap_tls';" ocdb;

To fix this issue and complitely turn off SSL certificate verification, run:

(inside container):

mysql -e "update oc_appconfig set configvalue=0 where configkey='ldap_tls';" ocdb;

(outside container, oc - container name):

docker exec oc mysql -e "update oc_appconfig set configvalue=0 where configkey='ldap_tls';" ocdb;