Here is my patch for fixing the aa2u package (attached). I have copied Thien-Thi Nguyen, aa2u's maintainer to verify it. Please commit it if all looks good; I don't have commit rights, but have my FSF copyright assignment on file.

Also copying Oleh as I couldn't figure out how to fix counsel-unicode-char. ivy-read accepts a COLLECTION which is a list.. so now we need to convert the hash table back to list for that?