Support for .WAV tags

About the first thing I did when I got v2.76 was to look at a .WAV file with «ID3v2.3 (RIFF ID3v2.3)». Then I did a Ctrl+X after looking at the Tag options and finding nothing there for .WAV files. It removed the tag even though it isn't checked for removal under Mpeg nor Ape,Mpc. I then pasted it back with Ctrl+V. Is it just that those options are incomplete or is it because there is only one option? The ID3v2.3 tag within the RIFF was encoded as UTF-16. Is ISO not an option?