Steps to Reproduce
Run this code and follow the steps.
<button label="1. Open Popup (contains a chosenbox)" popup="pop"/>
<chosenbox width="200px" />
<div>2. Open chosenbox dropdown (leave it open) and click outside the popup. </div>
<div>3. Then reopen the popup. </div>
When reopening the popup the <chosenbox> is invisible.
The <chosenbox> should remain visible.
This works properly with other combowidgets e.g. <combobox>
The <chosenbox> gets popup related inline styles which don't get cleaned up when closing the outer popup:
z-index: 1801; visibility: hidden;
a css based workaround is to add the following style rule (avoiding the invisibility):