Work around update bug with md5_hash field
Work around update bug with md5_hash field

If table meta data cache is created before the field is created it doesn't contain md5_hash.
Work with sql (which will not be interpreted, only passed 1:1 to database) to work around that

koala-framework/koala-framework,kaufmo/koala-framework,kaufmo/koala-framework,nsams/koala-framework,nsams/koala-framework,kaufmo/koala-framework,koala-framework/koala-framework,nsams/koala-framework