$to_merge = array(); // Inner block equals the path, no need to merge it.
				} else {
					$path = $this->get_block_path( $block, array( $inner_block ), $iterations + 1 );
				}

				if ( $path ) {

					// First iteration, append first block too.
					if ( ! $iterations ) {
						$to_merge[] = $_block;
					}

					// Merge.
					return array_merge( $path, $to_merge );

				}
			}
		}

		// Block not found in the list.
		return array();
	}

	/**
	 * Returns a filtered version of `$block_list` containing only the passed `$block` and its parents.
	 *
	 * @since 5.1.0
	 *
	 * @param array   $block      Parsed block array.
	 * @param array[] $block_list The list of WP Block array `$block` comes from.
	 * @return array[] Filtered version of `$block_list` containing only the passed `$block` and its parents.
	 *                 Or an empty array if `$block` cannot be found within `$block_list`.
	 */
	private function get_block_tree( $block, $block_list ) {

		foreach ( $block_list as &$_block ) {

			// Found the block.
			if ( $block === $_block ) {
				return array( $block );
			}

			if ( ! empty( $_block['innerBlocks'] ) ) {
				$tree = $this->get_block_tree( $block, $_block['innerBlocks'] );
			}