Tests fail with SEGFAULT in debug mode on Commit d6f6fa7

**Describe the bug**
When building the library based on commit d6f6fa7, I encountered two test failures while running `ci.sh` in debug mode. The tests fail with segmentation faults (`SEGFAULT`).

**To Reproduce**
Steps to reproduce the behavior:

1. Checkout the commit d6f6fa7
2. Run:
```
./ci.sh debug
```

**Expected behavior**
All tests should pass.

**Screenshots**
Out of 55 tests, 2 tests fail:

```
96% tests passed, 2 tests failed out of 55

Total Test time (real) = 6.37 sec

The following tests did not run:
54 - GaussBlurTest.SlowTestDirac1D (Disabled)

The following tests FAILED:
3 - ButteraugliInPlaceTest.LargeImage (SEGFAULT)
17 - JpegliTest.JpegliHDRRoundtripTest (SEGFAULT)
```

**Environment**
- OS: Ubuntu 20.04
- Compiler version: clang 11

**Additional context**

- The issue does not reproduce in release or opt modes.
- I attempted to reproduce the issue on the main branch, but encountered build failures during the build stage.