civicrm_contact_membership_create doesn't properly create memberships for related contact

When creating a membership for a contact that is, say, a member of a household, the API doesn't properly create the memberships for the related contacts. The problems is that in the API call, the API uses CRM_Member_BAO_Membership::checkMembershipRelationship that returns an array of the related contacts. The returned array is a set of "contact_id" => "relationship_type_id" pairs, and the API code expects just "index" => "contact_id" pairs.

The code in the API currently looks like this:

<code>
foreach ( $relatedContacts as $contactId )

{ $params['contact_id' ] = $contactId; $params['owner_membership_id'] = $membershipBAO->id; unset( $params['id'] ); CRM_Member_BAO_Membership::create( $params, CRM_Core_DAO::$_nullArray ); }

</code>

And it should look like this:

<code>
foreach ( $relatedContacts as $contactId => $relationTypeId )

{ $params['contact_id' ] = $contactId; $params['owner_membership_id'] = $membershipBAO->id; unset( $params['id'] ); CRM_Member_BAO_Membership::create( $params, CRM_Core_DAO::$_nullArray ); }

</code>