## Summary
- Added null check for `sourceOrigin` before accessing its URL in
`jest.mock()`
- When `callerSourceOrigin()` returns null (e.g., when called with
invalid arguments), the code now safely returns early instead of
crashing
## Test plan
- [x] Added regression test `test/regression/issue/ENG-24434.test.ts`
- [x] `bun bd test test/regression/issue/ENG-24434.test.ts` passes
Fixes ENG-24434
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Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
