Clear input when idField is set and id is null

hinter.js

@@ -2,7 +2,7 @@
 
    Homepage: http://yourcmc.ru/wiki/SimpleAutocomplete
    License: MPL 2.0+ (http://www.mozilla.org/MPL/2.0/)
-   Version: 2015-05-08
+   Version: 2015-07-17
    (c) Vitaliy Filippov 2011-2015
 
    Usage:
@@ -550,6 +550,8 @@ SimpleAutocomplete.prototype.onInputFocus = function()
 // Called when input loses focus
 SimpleAutocomplete.prototype.onInputBlur = function()
 {
+    if (!this.skipHideCounter && this.idField && !this.idField.value)
+        this.input.value = '';
     this.hide();
     this.hasFocus = false;
     return true;