build: handle leading spaces and fix branching

Author: Planeshifter

lib/node_modules/@stdlib/_tools/changelog/parse-commits/lib/conventional_changelog.js

@@ -22,13 +22,16 @@
 
 var visitWithAncestors = require( 'unist-util-visit-parents' );
 var visit = require( 'unist-util-visit' );
+var contains = require( '@stdlib/assert/contains' );
+var replace = require( '@stdlib/string/base/replace' );
 
 
 // VARIABLES //
 
 var RE_DIGITS = /^[0-9]+$/;
 var RE_CLOSES = /(?:closes|fixes|resolves)/i;
 var RE_CO_AUTHORED_BY = /co-authored-by/i;
+var RE_LEADING_HASH = /^\s*#/;
 
 
 // MAIN //
@@ -233,25 +236,28 @@ function toConventionalChangelog( ast, options ) {
 				}
 				break;
 			case 'text':
-				if ( node.value.indexOf( options.issueURL ) !== 1 ) {
+				if ( contains( node.value, options.issueURL ) ) {
 					reference.url = node.value;
 					reference.ref = node.value.split( '/' ).pop();
 				}
-				if ( node.value.indexOf( options.prURL ) !== 1 ) {
+				else if ( contains( node.value, options.prURL ) ) {
 					hasPRURL = true;
 					reference.url = node.value;
 					reference.ref = node.value.split('/').pop();
 				}
-				if ( node.value.charAt( 0 ) === '#' ) {
-					hasRefSeparator = true;
-					reference.ref = node.value.substring( 1 );
-				} else {
-					reference.ref = node.value;
-				}
-				if ( closesIssue ) {
-					reference.url = options.issueURL + reference.ref;
-				} else if ( hasPRURL ) {
-					reference.url = options.prURL + reference.ref;
+				if ( !reference.url ) {
+					// Case: reference is not an issue or PR URL
+					if ( RE_LEADING_HASH.test( node.value ) ) {
+						hasRefSeparator = true;
+						reference.ref = replace( node.value, RE_LEADING_HASH, '' );
+					} else {
+						reference.ref = node.value;
+					}
+					if ( closesIssue ) {
+						reference.url = options.issueURL + reference.ref;
+					} else if ( hasPRURL ) {
+						reference.url = options.prURL + reference.ref;
+					}
 				}
 				break;
 			default: