standalone: permanent "session already active" errors
Every page, including the login form has:
- session_set_save_handler(): Session save handler cannot be changed when a session is active [2] /var/www/standalone.localhost/web/core/CRM/Utils/System/Standalone.php line 567
- session_start(): Ignoring session_start() because a session is already active [8]
/var/www/standalone.localhost/web/core/CRM/Utils/System/Standalone.php line 580
I first encountered this while reviewing https://github.com/civicrm/civicrm-core/pull/29352 but after experiencing it once, I could not get it to repeat, so thought it was a random local thing. But now it's back.
I have some installs that don't have it, and others that do; I'm trying to figure out how to reproduce/what makes the difference.