bug#15687: 24.3.50; custom themes: disabling does not restore initial configuration

[Glenn Morris]

Drew Adams wrote:

> I gave a recipe. I'll repeat it.
>
>  emacs -Q, load oneonone.el, then doremi.el and doremi-cmd.el.

For a laugh, I downloaded those. That's 3000 lines in total.
That is not a minimal recipe, that's "debug my code for me".
I don't have the time.
If you think this is important, please come up with a minimal recipe.