Everything was working fine with my mantis installation, which is almost completely unaltered. I was checking out the admin area and I must have changed something because now when I assign an issue the issue doesn't automatically get changed to the assigned state, like it used to!
I can't figure out what I did! Any help? Also, I think I removed the version # from my footer and now I can't tell what version I'm on - how do I get it back?
If your installation is 'almost completely unaltered' the easiest thing would be to reinstall mantis.
The catch will be if you need to run the upgrade script, which is likely, and you'll need to know your current version. There should be a $g_mantis_version in config_defaults_inc.php
# Automatically set status to ASSIGNED whenever a bug is assigned to a person.
# This is useful for installations where assigned status is to be used when
# the bug is in progress, rather than just put in a person's queue.
$g_auto_set_status_to_assigned = ON;