EasyUI Combo Tree does not work with the down arrow key. When we select the combo tree and try to navigate though tree option using the down arrow key from keyborad it is not working.

Tried adding:  data-options="selectOnNavigation:false" but with no luck.

Is there any other way I can get the down arrow key to navigate to the combotree list?

[IE7 standards]

Environment >>> Browser Mode: IE9 and Document Mode: IE7 standards
Bug >>> Text in the combotree panel is truncated after(and including) the last occurance of the ampersand ('&') character.
Example >>> Tom&Jerry&Harry in the combotree panel would show only Tom&Jerry in the panel
Screenshot >>> attached