Restore globbed path behavior in front matter defaults (#9762)

Restore existing behavior in v4.3.x wherein a scope with path
`_*/**/index.md` matches `_label/index.md` as well instead of just
`_label/dir/index.md`.

lib/jekyll/frontmatter_defaults.rb

@@ -109,7 +109,7 @@ module Jekyll
       sanitized_path = sanitize_path(path)
 
       if rel_scope_path.include?("*")
-        File.fnmatch?(strip_collections_dir(rel_scope_path), sanitized_path)
+        glob_scope(sanitized_path, rel_scope_path)
       else
         path_is_subpath?(sanitized_path, strip_collections_dir(rel_scope_path))
       end

test/source/gathering/_staff/admins/backend/gamma.svg

@@ -1 +0,0 @@
-<svg></svg>

test/source/gathering/_staff/admins/backend/jack.md

@@ -1,3 +0,0 @@
----
-speciality: Ruby
----

test/source/gathering/_staff/admins/frontend/alpha.svg

@@ -1 +0,0 @@
-<svg></svg>

test/source/gathering/_staff/admins/frontend/john.md

@@ -1,3 +0,0 @@
----
-speciality: JS Frameworks
----

test/test_front_matter_defaults.rb

@@ -25,6 +25,10 @@ class TestFrontMatterDefaults < JekyllUnitTest
       assert_equal "val", @affected.data["key"]
       assert_nil @not_affected.data["key"]
     end
+
+    should "not call Dir.glob block" do
+      refute_includes @output, "Globbed Scope Path:"
+    end
   end
 
   context "A site with full front matter defaults (glob)" do
@@ -49,38 +53,9 @@ class TestFrontMatterDefaults < JekyllUnitTest
       assert_equal "val", @affected.data["key"]
       assert_nil @not_affected.data["key"]
     end
-  end
 
-  context "A site with collections and front matter defaults with glob patterns" do
+    should "call Dir.glob block" do
-    setup do
+      assert_includes @output, "Globbed Scope Path:"
-      site = fixture_site(
-        "collections_dir" => "gathering",
-        "collections"     => { "staff" => { "output" => true } },
-        "defaults"        => [
-          {
-            "scope"  => { "path" => "_staff/**/*.md", "type" => "staff" },
-            "values" => { "layout" => "simple" },
-          },
-          {
-            "scope"  => { "path" => "_staff/**/*.svg" },
-            "values" => { "css_class" => "epilson" },
-          },
-        ]
-      )
-      site.read
-      @staff = site.collections["staff"]
-    end
-
-    should "affect the appropriate items only" do
-      @staff.docs.each do |item|
-        assert_equal "simple", item.data["layout"]
-        assert_nil item.data["css_class"]
-      end
-
-      @staff.files.each do |item|
-        assert_equal "epilson", item.data["css_class"]
-        assert_nil item.data["layout"]
-      end
     end
   end