What is the issue with the HTML Standard?

As the title says, it seems like the steps for "hide popover stack until" and "close entire popover list" expect popoverList to be dynamically updated as items are hidden. For example, "close entire popover list" would be an infinite loop repeatedly trying to hide the last item in the list.

This may be left over from when "showing auto/hide popover list" was changed to be an algorithm instead of being tracked by the document.