grid with hflex=min columns renders invisible

	<grid>
		<columns>
			<column hflex="min" label="col-1"/>
			<column hflex="min" label="col-2"/>
			<column hflex="min" label="col-3"/>
		</columns>
		<rows>
			<row>
				<cell>cell-1</cell>
				<cell>cell-2</cell>
				<cell>cell-3</cell>
			</row>
		</rows>
	</grid>

<div id="u9HV0-body" class="z-grid-body" style="overflow: auto;">
  <table id="u9HV0-cave" width="100%" style="table-layout: fixed; visibility: hidden; width: 213px;">
   <colgroup id="u9HV1-bdfaker">...