In work-recording (without s) add relationship edit page, the check-boxes have labels around them (which allows clicking on text to check) on cover, live, partial, instrumental attributes for instance.
<label><input type="checkbox"></label>

In work-recordings (with s) add relationship edit page, there is no label.
<input type="checkbox">
Could they be added there too ?

() Notice that feeding the select in URL parameter doesn't work