Warn about setting the password of a SSO user in an SIS import

Setting the password on a user when you are using a SSO or LDAP will reset the users session when the SIS import happens.
Per 715541 zendesk ticket.
I agree,  it should be stated that changing it at all will reset their current session which could cause issues.  Also add in that it should not be used in with an SSO setup like you have.