show no content if it contains only empty elements

Application/views/blocks/page/details/inc/details_tabs_invite.html.tpl

@@ -5,7 +5,7 @@
 [{assign var="sShopURL"      value=$oConfig->getConfigParam('sShopURL')}]
 [{assign var="description"   value=$oManufacturer->d3GetLongdesc()}]
 
-[{if $oManufacturer && $oConfig->getConfigParam('d3manufacturerinformation_showManufacturertextOnDetailsPage') && $description->value}]
+[{if $oManufacturer && $oConfig->getConfigParam('d3manufacturerinformation_showManufacturertextOnDetailsPage') && $description->rawValue|strip_tags|trim}]
     [{capture append="tabs"}]<a href="#manufacturertab" data-toggle="tab">[{oxmultilang ident="MANUFACTURER"}]</a>[{/capture}]
     [{capture append="tabsContent"}]
         <div id="manufacturertab" class="tab-pane[{if $blFirstTab}] active[{/if}]">