fix: slash in scope conventional-changelog#291 (conventional-changelog#529)

* test(rules): add test for slash in scope conventional-changelog#291

* fix(ensure): split input by slashes for casing

* chore: remove comment

Author: escapedcat

@commitlint/ensure/src/case.js

@@ -8,7 +8,11 @@ function ensureCase(raw = '', target = 'lowercase') {
 	const input = String(raw)
 		.replace(/`.*?`|".*?"|'.*?'/g, '')
 		.trim();
-	const transformed = toCase(input, target);
+	
+	const delimiters = /(\/|\\)/g;
+	const transformed = input.split(delimiters)
+		.map(segment => delimiters.test(segment) ? segment : toCase(segment, target))
+		.join('');
 
 	if (transformed === '' || transformed.match(/^\d/)) {
 		return true;

@commitlint/ensure/src/case.test.js

@@ -110,6 +110,11 @@ test('true for * on pascal-case', t => {
 	t.is(actual, true);
 });
 
+test('true for Modules/Graph on pascal-case', t => {
+	const actual = ensure('Modules/Graph', 'pascal-case');
+	t.is(actual, true);
+});
+
 test('true for * on start-case', t => {
 	const actual = ensure('*', 'start-case');
 	t.is(actual, true);