build: include summaries for next versions even if empty

Author: Planeshifter

lib/node_modules/@stdlib/_tools/changelog/generate/lib/main.js

@@ -16,6 +16,8 @@
 * limitations under the License.
 */
 
+/* eslint-disable max-statements */
+
 'use strict';
 
 // MODULES //
@@ -301,7 +303,6 @@ function generate( pkg, releaseType ) {
 		if ( releaseType === 'major' && semver.major( newestRelease ) < 1 ) {
 			releaseType = 'minor';
 		}
-		nextVersion = semver.inc( newestRelease, releaseType );
 	}
 	if ( releaseType && releaseType !== 'none' ) {
 		if ( newestRelease ) {
@@ -324,8 +325,8 @@ function generate( pkg, releaseType ) {
 		for ( i = 0; i < pkgNames.length; i++ ) {
 			name = pkgNames[ i ];
 			unreleased = releaseSummary( bySubpackage[ name ], true, true );
-			if ( unreleased ) {
-				str += packageSummaryWrapper( pkg, '', name, unreleased );
+			if ( unreleased || nextVersion ) {
+				str += packageSummaryWrapper( pkg, '', name, unreleased || PLACEHOLDER_SUMMARY );
 			}
 		}
 		str += sectionEnd( 'packages' );
@@ -336,10 +337,10 @@ function generate( pkg, releaseType ) {
 		str += sectionEnd( 'release' );
 	} else {
 		unreleased = releaseSummary( commits.unreleased );
-		if ( unreleased ) {
+		if ( unreleased || nextVersion ) {
 			str += releaseSectionStart( nextVersion );
 			str += '## ' + ( nextVersion || 'Unreleased' ) + ' (' + formatDate() + ')\n\n';
-			str += unreleased;
+			str += unreleased || PLACEHOLDER_SUMMARY;
 			str += sectionEnd( 'release' );
 		}
 	}