If the custom value of a language item is empty, no icon has been displayed.
<div>
<div class="details">
<div class="containerHeadline">
- <h3><a class="jsLanguageItem" data-language-item-id="{@$item->languageItemID}">{$item->languageItem}</a>{if $item->languageCustomItemValue} <span class="icon icon16 icon-bookmark jsTooltip" title="{lang}wcf.acp.language.item.hasCustomValue{/lang}"></span>{/if}</h3>
+ <h3><a class="jsLanguageItem" data-language-item-id="{@$item->languageItemID}">{$item->languageItem}</a>{if !$item->languageCustomItemValue|is_null} <span class="icon icon16 icon-bookmark jsTooltip" title="{lang}wcf.acp.language.item.hasCustomValue{/lang}"></span>{/if}</h3>
</div>
<p>{if $item->languageUseCustomValue}{$item->languageCustomItemValue|truncate:255}{else}{$item->languageItemValue|truncate:255}{/if}</p>