error when ngf-keep is used.

[joshikeerti]

I have the latest version of the library and I am trying to use ngf-keep="'distinct'", I am geting an error
Uncaught TypeError: Cannot read property 'length' of null

I went into the code and found that the error is in model.js file. It is getting the prevFiles length as null.

function handleKeep(files, prevFiles, attr, scope) {
var len = prevFiles.length;
}

[danialfarid]

Fixed at 9.0.19