sap.m.SearchField.ShowRefreshButton property

Guru’s,

we are @ SAPUI5 (1.28.29) SAP_UI 7.40 SP14 and running a SplitApp.

On OData Model does the “ShowRefreshButton” Property suppose to work? I don’t see it doing what it’s meant to.

View:

<subHeader id=”masterSubHeader”>

<Bar id=”searchBar”>

<contentMiddle>

<SearchField id=”searchField” liveChange=”onSearch” selectOnFocus=”true” showRefreshButton=”{device>/isNoTouch}” tooltip=”{i18n>masterSearchTooltip}”

width=”100%”></SearchField>

</contentMiddle>

</Bar>

</subHeader>

anything other than “device” or “True” will not work as it disables the property. Any ideas why it’s behaving this way?