The problem

Multi-line TOML strings aren't coloured in the diff - only the first line does. No error message appear in the console.

Release version

2.9.12

Operating system

Windows 10

Steps to reproduce the behavior

1. Create and save a new TOML file with a multi-line string.
2. Observe the absence of colour on the string :(

Log files

No response

Screenshots

Additional context

No response