Ability to undo "Best answer" / "Solution" in frontend

When a user posts a question, he/she (or any moderator) can mark one of the answers in this topic as "Best answer" (or "Solution", depending on how the phrase is, well, phrased). What's not possible is to undo this action in the frontend.

The undo function is available for moderators in the control panel. If a user mistakenly marked an answer as "Best answer" (or a moderator marked a "Best answer" but the user doesn't agree), the only way to undo this is to ask a moderator to do it. This leads to more work than necessary.

We would like to see the undo function also be implemented in the frontend.