Fix fuzzy string match invariant check (#22032)

Version in #21983 only handled out of range issues rather than utf-8
boundary issues (thanks to @s3bba for pointing this out)

Release Notes:

- N/A

Michael Sloan committed 1y ago

f64fcedabb98257e6ddc8ebb90acea7dc8322b83

Parent: 7e6233d

Committed by GitHub <noreply@github.com> on 12/15/2024, 8:15:22 AM