`/*/` then `!/dir/` drops the re-included directory's nested subdirectories

[xelra]

Summary — After a wildcard ignore /*/ re-includes a directory via negation (!/keep/), the walker still drops that directory's nested subdirectories, omitting files git tracks. A literal ignore-then-reinclude (/keep/ + !/keep/) works correctly, so it's specific to the /*/ wildcard.

Repro — .gitignore containing /*/ then !/keep/, with a tree:

keep/a.rs
keep/sub/c.rs

q := make(chan *gocodewalker.File, 1024)
w := gocodewalker.NewParallelFileWalker([]string{"."}, q)
go func() { _ = w.Start() }()
for f := range q { fmt.Println(f.Location) }

Expected (matches git ls-files): keep/a.rs and keep/sub/c.rs.
Actual: only keep/a.rs — keep/sub/c.rs (depth-2, git-tracked) is missing.

Isolation

.gitignore	git keeps	gocodewalker walks
/*/ + !/keep/	keep/a.rs, keep/sub/c.rs	keep/a.rs only ❌
/keep/ + !/keep/	keep/a.rs, keep/sub/c.rs	both ✅
/drop/ (no negation)	sub/drop/y.rs	sub/drop/y.rs ✅

/*/ keeps matching the re-included directory's nested subdirectories (keep/sub/), even though a leading-slash pattern is anchored to the .gitignore directory and /*/ should only match first-level entries.

Versions — Reproduces on v1.5.1 (latest release) and current master (via ghcr.io/boyter/scc:master, built 2026-06-26). Looks like the same root-anchoring issue as boyter/scc#408, closed as fixed by the gocodewalker rewrite — this wildcard and negation case seems to have slipped through.

[boyter]

Fix sitting on #25

Due to the go-gitignore dependancy I pulled in, which I never fully evaluated.

[boyter]

Done. Latest master should fix this for you. I will update downstream dependancies soon.