Ampersands in Tag name break _class

(Bug, Closed -> Fixed, Priority: Critical, Test Status: Unit tested , Reported By Bad Link: Thing 3y284oe not found, )
Tag Sets, Functions
Summary:
Take two tags, "Core Game" and "Branch & Claw". In QL Explorer, do this:
""____"" -> _class(""myClass"")
When you do this to "Core Game", it works as expected. When you do it to "Branch & Claw", nothing is displayed.