CRM_Member_BAO_Membership::getContactMembership does not return latest membership

CRM_Member_BAO_Membership::getContactMembership does not return latest membership record.

This can cause problems when an organisation with two membership records is called. The method can mistakenly return that they are not a member ([is_current_member] => 0) if it looks at an older record which has expired.

The bug is fixed by adding the following at line 649 in CRM/Member/BAO/Membership.php

$dao->orderBy('start_date DESC');