Recalculate inner block context after filter

Author: dlh01

src/wp-includes/class-wp-block.php

@@ -496,7 +496,9 @@ public function render( $options = array() ) {
 						/** This filter is documented in wp-includes/blocks.php */
 						$inner_block->context = apply_filters( 'render_block_context', $inner_block->context, $inner_block->parsed_block, $parent_block );
 
-						$block_content .= $inner_block->render();
+						$this->inner_blocks[ $index ] = new WP_Block( $inner_block->parsed_block, $inner_block->context, $this->registry );
+
+						$block_content .= $this->inner_blocks[ $index ]->render();
 					}
 
 					++$index;