This bug can be replicated by anyone at any time so there's no need for the busywork form.

Try on a piece of gear, hit "save outfit," then right click any piece of dyeable gear and select "Enable Dye Preview" and select a dye, then go back to fitting room and delete the outfit data. It reverts the gear but not the dye preview. It does the same thing if you preview a dye before saving the outfit as well. I know it wasn't like this prior to 4.3, but I also don't know if it's intended. It's very annoying if it was changed to work like this.