[BUG] wrong file patterns created from .gitignore entries

[nerdbeere]

Is there an existing issue for this?

• I have searched the existing issues

Does this issue exist in the latest version?

• I'm using the latest release

Describe the bug?

The file patterns generated from .gitignore entries are generated incorrectly.

An entry with /foo becomes !/path/to/work/dir/**/foo which incorrectly matches all directories named foo instead of matching only the root-level

To Reproduce

1. create .gitignore entry starting with /
2. turn on debug output and look at output of generated file patterns

What OS are you seeing the problem on?

ubuntu-latest or ubuntu-20.04

Expected behavior?

Correct file pattern in the example would be !/path/to/work/dir/foo

Relevant log output

No response

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

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