I found that if I did something like this...
$this->persistent->acl = NULL;
... then I found I could cause an unrecoverable error.
The error then persists. I thought I might be able to break the persistence and recover by restarting apache but this didn't work.
The only way I knew besides possibly restarting my machine was to do the following:
$this->persistent->acl = new Phalcon\Acl\Adapter\Memory(); unset($this->persistent->acl);
This then opens a path to setup my Access Control List.
My question is without using code how can I reset persistent variables in phalcon bad examples aside?