Uncaught RangeError: Maximum call stack size exceeded

[ghost]

Uncaught RangeError: Maximum call stack size exceeded happens when opening the keyboard, clearing the text field via pressing the clear button, and pressing the X button to exit out then doing the same thing on another instance of a vk on the same screen and clicking back on any cleared vk in Chrome browser. Error only comes up when keypad used in an ng-repeat. Version 1.49 vki.