Fix truncation of branch names containing non-ASCII characters

[stefanhaller]

• PR Description

Fix truncating long branch names containing non-ASCII characters.

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Coverage summary from Codacy

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Coverage variation	Diff coverage
Report missing for a171ec42943c048e4210bd6beac64aa138ea7c56[^1]	:white_check_mark: 100.00%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (a171ec42943c048e4210bd6beac64aa138ea7c56) | Report Missing | Report Missing | Report Missing | | | Head commit (d406ec06af1f671e3370d120deb439af3cad7fa4) | 52182 | 45129 | 86.48% | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#3685) | 4 | 4 | **100.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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_{Codacy stopped sending the deprecated coverage status on June 5th, 2024. Learn more} [^1]: Codacy didn't receive coverage data for the commit, or there was an error processing the received data. Check your integration for errors and validate that your coverage setup is correct.

[stefanhaller]

Yeah, to be honest it's not a problem that I ran into myself; I just noticed this while working on the code (for #3686). But I suppose it could be an issue for east asian people using their native language in branch names.