generate documentation from config.sample.php

admin_manual/configuration_server/config_sample_php_parameters.rst

@@ -1166,6 +1166,10 @@ trashbin_retention_obligation
 If the trash bin app is enabled (default), this setting defines the policy
 for when files and folders in the trash bin will be permanently deleted.
 
+If the user quota limit is exceeded due to deleted files in the trash bin,
+retention settings will be ignored and files will be cleaned up until
+the quota requirements are met.
+
 The app allows for two settings, a minimum time for trash bin retention,
 and a maximum time for trash bin retention.