jqxGrid - typing a foreign language letter with editMode='selectedcell' enters the letter in English

[MartinYotov]

When the jqxGrid editMode is equal to "selectedcell" and a letter is pressed in another language (not English) the first letter in the cell editor is typed in English.

Example: http://jsfiddle.net/tz2n1pq9/

Forum topic: https://www.jqwidgets.com/community/topic/wrong-letter-in-begin-cell-edit/