Fixed Issues #111

[think2011]

I modify L371 and L574

// L371
var focusElements = {};

// L574 begin
var setFocus = function(isValid) {
    if(isValid) {
        delete focusElements[index];
    } else {
        focusElements[index] = element[0];

        $timeout(function() {
            focusElements[Math.min.apply(null, Object.keys(focusElements))].focus();
        }, 0);
    }
};

isValid.constructor === Object ? isValid.then(setFocus) : setFocus(isValid);

It's working for me.

If this PR is useful, please review code and code comment, because my English is very poor :)

[hueitan]

Thanks @think2011 Do you mind give some explanation about this fix?

[hueitan]

Please try grunt build, then everything is great. 🍻

[think2011]

1. Collect all error items with var focusElements = {}; use error index to make a object key.
2. Because some function returns a promise，when promise done Math.min will find the smallest element as index, and focus it.

grunt build complete👌

[hueitan]

Cool! Nice Fix. 🍻