oops: Add forgotten template file

include/staff/templates/advanced-search-field.tmpl.php

+<input type="hidden" name="fields[]" value="<?php echo $name; ?>"/>
+<?php foreach ($fields as $F) { ?>
+<fieldset id="field<?php echo $F->getWidget()->id;
+    ?>" <?php if (!$F->isVisible()) echo 'style="display:none;"'; ?>>
+    <?php echo $F->render(); ?>
+    <?php foreach ($F->errors() as $E) {
+        ?><div class="error"><?php echo $E; ?></div><?php
+    } ?>
+</fieldset>
+<?php } ?>