Unable to Modify KendoAutoComplete Selected Value

After selecting a hint item in KendoAutoComplete, I can't change selected text by backspace key.  It will be restored to the original selected value repeatly until you select all text and type a different charactor.  This bug will be fixed after upgrade from 2015.1.318 to 2015.1.408+.  Just a note in case anyone meets this issue.

使用KendoAutoComplete遇到一個小問題，當有多個相近提示項目，選取其中之一再用Backspace（倒退鍵）刪去字元，KendoAutoComplete會自動補填回剛才的選取項目，像是中了詛咒，必須全選輸入不同字元才能脫身。如以下展示，問題在改用2015.4.408版後消失，推斷為2015.1.318版的Bug，小問題一枚卻花了半個多小時抽絲剝繭才確定，筆記分享以防有其他人踩到。