Jimmy Yuen Ho Wong <wyuenho@gmail.com> writes:

> 1. emacs -q
> 2. Visit an elisp file in a git repo that has a hex color value in a
> string parameter followed by a
> hash, e.g. (set-face-attribute 'default nil :background "#002b36" :foreground "#839496")
> 3. M-x rainbow-mode.
> 4. Observe that the hex color value has been highlighted.
> 5. M-x bug-reference-mode or bug-reference-prog-mode.
> 6. Observe that the hex color has and overlay with a link interface
> applied.

I'm unable to reproduce this with the attached test file: