Worked on the samply/lens repository to address a bug affecting the accuracy of query construction in the user interface. Focused on frontend development using Svelte and TypeScript, the work involved updating the addInputValueToStore function to ensure that criteria selected from the AutoComplete component were assigned to the correct subquery. By aligning this logic with the active subquery context through the use of $activeQueryGroupIndex, the fix prevented user selections from being misapplied, thereby improving the reliability of search results. This targeted bug fix enhanced both the correctness of query behavior and the overall user experience within the application.