Worked on the typeorm/typeorm repository to enhance data integrity around soft deletion operations in a TypeScript-based backend environment. Addressed a bug where soft delete actions could inadvertently update rows that were already soft deleted, potentially leading to unnecessary writes and data inconsistency. Implemented logic to ensure that once a row is soft deleted, subsequent soft delete operations do not modify it further, thereby preserving historical state and reducing write amplification. This solution leveraged TypeScript, backend development principles, and database management expertise to minimize the risk of data corruption and maintain consistent application behavior across the codebase during database operations.