Attempting to install latest version of registration results in fatal errors.

Hiya,

I have been testing out doing the migration which has involved going back to a base state of my site (pre-registration). So I downloaded the latest version of registration and when I tried to install the module, I get the following error:

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')) AND (fc.active = '1') AND (fc.storage_active = '1') AND (fc.deleted = '0') AN' at line 3: SELECT fci.* FROM {field_config_instance} fci INNER JOIN {field_config} fc ON fc.id = fci.field_id WHERE (fci.field_name IN ()) AND (fc.active = :db_condition_placeholder_0) AND (fc.storage_active = :db_condition_placeholder_1) AND (fc.deleted = :db_condition_placeholder_2) AND (fci.deleted = :db_condition_placeholder_3) ; Array ( [:db_condition_placeholder_0] => 1 [:db_condition_placeholder_1] => 1 [:db_condition_placeholder_2] => 0 [:db_condition_placeholder_3] => 0 ) in field_read_instances() (line 704 of /Users/amodi/Sites/d7.redcat.org/modules/field/field.crud.inc).

And there is no way to recover and try to uninstall the module (drush or otherwise - I had made backups and its on my dev site so I went back to an older version of my db)
I see that there are a *lot* of commits over the weekend but the one that I get the issues starting from are commit hash a1bfbc2cdac8a375a744f0d2f474f369ee94cfcd (#1428976: Add Views Relationships to Author and Parent Entity). If I go to the commits prior to that, the codebase seems to work just fine.