Steps to Reproduce

run cascader.zul
1) click button "select in model"
2) click the "down arrow" to open the cascader dropdown

Current Result

1) item selected -> OK, down arrow remains -> BUG
2) selection gets cleared -> (inconsistent with icon)

Expected Result

1) "down arrow" is replaced with clear icon ("X")
2) button does what it indicates

Debug Information

related to ZK-4440

Workaround