TypeError: mapping.Conditions is undefined

[kgkg]

In browser (any) using dist/autocomplete.js we get error in console.log:
TypeError: mapping.Conditions is undefined: autocomplete.js:112:13

Completion works though.
It happens every time right before (of after) ajax callback.

If we change line 112 of js file (I know .ts should be changed, but I did this for quick experiment) to:
if (mapping.Conditions) {
mapping.Conditions.forEach(eventIdentifier);
}

Then another error appears:
TypeError: mapping.Callback is undefined: autocomplete.js:116:17

Changing this to:
if (match === true && mapping.Callback) {
mapping.Callback.call(params, event);
}

Fixes it.
I can prepare pull request with .ts but I just wanted to know if the way I fixed it is correct.