False path warning / resources possibly written twice to /public in some cases

[bep]

See https://discourse.gohugo.io/t/duplicate-target-paths/52788/5

[jmooring]

FYI...

With only 1 file (foo.txt) in the assets directory, this template...

A: {{ (resources.Get "foo.txt").RelPermalink }}
B: {{ (resources.GetMatch "foo.txt").RelPermalink }}
C: {{ (index (resources.Match "foo.txt") 0).RelPermalink }}
D: {{ (index (resources.ByType "text") 0).RelPermalink }}

...triggers this warning:

WARN  Duplicate target paths: /foo.txt (4)

But this template doesn't trigger any warnings:

A: {{ (resources.Get "foo.txt").RelPermalink }}
B: {{ (resources.Get "foo.txt").RelPermalink }}
C: {{ (resources.Get "foo.txt").RelPermalink }}
D: {{ (resources.Get "foo.txt").RelPermalink }}

I tried to create an integration test but I couldn't trigger the warning.

integration test

func TestFoo(t *testing.T) {
	t.Parallel()

	files := `
-- hugo.toml --
disableKinds = ['page','rss','section','sitemap','taxonomy','term']
printPathWarnings = true
-- assets/foo.txt --
foo
-- layouts/index.html --
A: {{ (resources.Get "foo.txt").RelPermalink }}
B: {{ (resources.GetMatch "foo.txt").RelPermalink }}
C: {{ (index (resources.Match "foo.txt") 0).RelPermalink }}
D: {{ (index (resources.ByType "text") 0).RelPermalink }}
-- layouts/unused/single.html --
{{ .Title }}
`
	b := hugolib.Test(t, files)

	b.AssertFileContent("public/index.html",
		"A: /foo.txt",
		"B: /foo.txt",
		"C: /foo.txt",
		"D: /foo.txt",
	)
	b.AssertLogContains("WARN  Duplicate target paths: /foo.txt (4)")
}