Steps to Reproduce

<zk>
	<div id="div" vflex="1" hflex="1" style="background: blue">blue</div>
	<button label="vflex to min">
		<attribute name="onClick"><![CDATA[
			div.setVflex("min");
			Clients.resize(div);
		]]></attribute>
	</button>
</zk>

from https://www.zkoss.org/wiki/ZK_Developer%27s_Reference/UI_Patterns/Hflex_and_Vflex#Minimum_Flexibility_Doesn.27t_Change_a_Component.27s_Size_Dynamically
1. click the button

Current Result

nothing changed

Expected Result

the div should reduce its width for hflex="min"

Debug Information

• 8.6.4 doesn't have this bug

Workaround

<custom-attributes org.zkoss.zul.css.flex="false"/>