allow variationpickers to be recommended blocks

packages/schema-blocks/src/core/validation/BlockValidation.ts

@@ -12,8 +12,10 @@ export enum BlockValidation {
 
 	/** This block is not completely valid, but should not prevent the Schema to be output either. */
 	OK = 200,
+	/** This block has recommended attributes, but these attributes are missing or empty. */
+	MissingRecommendedAttribute = 201,
 	/** This block is defined to recommend a particular inner block, but that block doesn't exist. */
-	MissingRecommendedBlock = 201,
+	MissingRecommendedBlock = 202,
 
 	/** INVALID RESULTS (300+): Will prevent Schema output.
 

packages/schema-blocks/src/core/validation/BlockValidationResult.ts

@@ -70,10 +70,13 @@ export class BlockValidationResult {
 	 * @constructor
 	 */
 	static MissingAttribute( blockInstance: BlockInstance, name?: string, blockPresence?: BlockPresence ) {
+		const blockValidation: BlockValidation = ( blockPresence === BlockPresence.Required )
+			? BlockValidation.MissingAttribute : BlockValidation.MissingRecommendedAttribute;
+
 		return new BlockValidationResult(
 			blockInstance.clientId,
 			name || blockInstance.name,
-			BlockValidation.MissingAttribute,
+			blockValidation,
 			blockPresence || BlockPresence.Unknown,
 		);
 	}