Fix for empty starter patterns

packages/block-editor/src/components/inserter/hooks/use-patterns-state.js

@@ -17,15 +17,11 @@ function useStartPatterns() {
 	// A pattern is a start pattern if it includes 'core/post-content' in its blockTypes,
 	// and it has no postTypes declared and the current post type is page or if
 	// the current post type is part of the postTypes declared.
-	const { blockPatternsWithPostContentBlockType } = useSelect( ( select ) => {
-		const { getPatternsByBlockTypes } = select( blockEditorStore );
-		return {
-			blockPatternsWithPostContentBlockType:
-				getPatternsByBlockTypes( 'core/post-content' ),
-		};
-	}, [] );
-
-	return blockPatternsWithPostContentBlockType;
+	return useSelect( ( select ) =>
+		select( blockEditorStore ).getPatternsByBlockTypes(
+			'core/post-content'
+		)
+	);
 }
 
 /**

packages/editor/src/components/start-page-options/index.js

@@ -2,18 +2,33 @@
  * WordPress dependencies
  */
 import { useState, useEffect } from '@wordpress/element';
-import { useSelect, useDispatch } from '@wordpress/data';
+import { useSelect, useRegistry } from '@wordpress/data';
+import { store as blockEditorStore } from '@wordpress/block-editor';
 
 /**
  * Internal dependencies
  */
 import { store as editorStore } from '../../store';
 
 function StartPageOptionsModal() {
-	const { setIsInserterOpened } = useDispatch( editorStore );
+	const registry = useRegistry();
+	// A pattern is a start pattern if it includes 'core/post-content' in its
+	// blockTypes, and it has no postTypes declared and the current post type is
+	// page or if the current post type is part of the postTypes declared.
+	const hasStarterPatterns = useSelect(
+		( select ) =>
+			!! select( blockEditorStore ).getPatternsByBlockTypes(
+				'core/post-content'
+			).length
+	);
 	useEffect( () => {
-		setIsInserterOpened( { tab: 'patterns', category: 'core/content' } );
-	}, [ setIsInserterOpened ] );
+		if ( hasStarterPatterns ) {
+			registry.dispatch( editorStore ).setIsInserterOpened( {
+				tab: 'patterns',
+				category: 'core/content',
+			} );
+		}
+	}, [ hasStarterPatterns, registry ] );
 	return null;
 }