[Fixed v1.5.1] PHP Error when no Record Company ID with Typefilter

[maac2]

1.5.0 (upgraded, not new install)
Add ons: Various order-total modules from swguy and some custom edits (mostly cosmetic)
SFTP, Official upgrade procedure.

Only posting as a bug because it deals with incorrect URLs differently to other index filters and produces a debug file. Sorry if these circumstances are not considered bugs.
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The Record Company index_filter will return a PHP error if &record_company_id= is not included in the URL ie main_page=index&typefilter=record_company

Other index filters (eg main_page=index&typefilter=music_genre) will return the index page (specifically the index content without index css being recognised). Record company will return an error and the following debug content:

PHP Fatal error: 1054:Unknown column 'r.record_company_id' in 'field list' :: select distinct r.record_company_id as id, r.record_company_name as name
from products p, products_to_categories p2c, product_music_extra pme, record_company m
where p.products_status = 1
and pme.record_company_id = r.record_company_id
and p.products_id = p2c.products_id
and pme.products_id = p.products_id
and p2c.categories_id = '0'
order by r.record_company_name in /includes/classes/db/mysql/query_factory.php on line 101

I was able to 'fix' (posting here to see if there are any ramifications) this by editing line 192 in /includes/index_filters/record_company_filter.php
TABLE_RECORD_COMPANY . " m
to
TABLE_RECORD_COMPANY . " r