columnText renders text, not html, when using colReorder and colVis and bootstrap

Demo: https://jsfiddle.net/friek2k/fjwjfuxL/

In this demo, on first load, columnText appropriately renders the supplied html as html. However, if you try re-ordering the columns, then opening the columns dropdown again, the buttons are echoed as text - i.e. the html isn't rendered.

Any suggestions on how to remediate?

Thanks a lot