Clear the Lineup — doesNotEqual was always true for single-select survey answers in Formbricks

This is a submission for DEV's Summer Bug Smash: Clear the Lineup.

Project Overview

Formbricks is an open-source survey and experience-management platform. Its packages/surveys package ships the client-side survey runner, and inside it, packages/surveys/src/lib/logic.ts is the module that decides, for every question and every "skip logic" / branching rule a survey author configures, whether a given condition (equals, doesNotEqual, contains, isEmpty, and friends) is true for a respondent's answer. This is pure, unglamorous logic — but it's load-bearing: it's what routes respondents through the correct sequence of questions.

I picked up issue #8527 for the "Clear the Lineup" track, which reports that doesNotEqual conditions weren't behaving correctly for single-choice questions.

Bug Fix or Performance Improvement