# T2: Fix a bug so the tests pass (suite v1)

Frozen prompt. Fixture: a small repo (about 10 files) with a test suite where 3 tests fail because of one root cause. The fixture is committed with the evidence before any run.

## Prompt
This repo has failing tests. Find the cause and fix it so the whole test suite passes. Do not edit or delete the tests. Keep the change as small as you can and tell me what was wrong.

## Acceptance checks (scored by a fixed script)
1. The full test suite passes.
2. The test files are byte-identical to the fixture (hash check).
3. No files outside the fixture's source folder were changed.
4. The change touches 3 or fewer source files.
5. The written explanation names the actual root cause (checked against a one-line answer key written before the first run).