Hello Andy,

1. Wait until the Component is rendered
2. Get the li elements of the SplitButton's popup
3. Swap its attributes with the anchor tag in it

    $(document).ready( function () {
           var li = $(".k-menu-popup").find("li");
           li.each((ind,item)=>{
               var anchor = $(item).find("a");
               anchor.attr({
                   "id":$(item).attr("id"),
                   "role":$(item).attr("role"),
                   "target":$(item).attr("target"),
                   "data-overflow":$(item).attr("data-overflow"),
                   "data-uid":$(item).attr("data-uid")            
               });
               $(item).attr({
                   "id":null,
                   "role":null,
                   "target":null,
                   "data-overflow":null,
                   "data-uid":null
               });
           })
           
       });

Review the behavior of the workaround in this Telerik REPL.

Regards,
Stoyan
Progress Telerik