hiroshi/knockoutFire — pull request #8 by ayurmedia (2013-04-30 06:44:02+00:00)
Title: i made a small modification for loading data, when attributes are missing in firebase objects. 

when changing your schema of object. eg. adding a field/attribute, then the knockoutFire function exits with error, because the "map" cannot be matched with the data coming from the database.
with this

if( typeof self() == 'null' || options.map == true ) return;

it will still work, and one can read and write data.