Author, Author Name block: fix PHP warning error when there is no context (#69949)

Co-authored-by: t-hamano <[email protected]>
Co-authored-by: Mamaduka <[email protected]>
Co-authored-by: justlevine <[email protected]>

Author: 3 people

packages/block-library/src/post-author-name/index.php

@@ -26,7 +26,7 @@ function render_block_core_post_author_name( $attributes, $content, $block ) {
 		return '';
 	}
 
-	if ( ! post_type_supports( $block->context['postType'], 'author' ) ) {
+	if ( isset( $block->context['postType'] ) && ! post_type_supports( $block->context['postType'], 'author' ) ) {
 		return '';
 	}
 

packages/block-library/src/post-author/index.php

@@ -26,7 +26,7 @@ function render_block_core_post_author( $attributes, $content, $block ) {
 		return '';
 	}
 
-	if ( ! post_type_supports( $block->context['postType'], 'author' ) ) {
+	if ( isset( $block->context['postType'] ) && ! post_type_supports( $block->context['postType'], 'author' ) ) {
 		return '';
 	}