Various hardening for commonutils library internal calls for fuzzing #2445

All 170 tests pass in 13m 35s

16 files - 28 91 suites +47 13m 35s ⏱️ - 25m 11s
170 tests + 166 170 ✅ + 166 0 💤 ± 0 0 ❌ ±0
2 210 runs +2 034 2 210 ✅ +2 056 0 💤 - 22 0 ❌ ±0

Results for commit 1477a9a. ± Comparison against earlier commit e85c84e.