wp-includes/blocks.php:2490If do_blocks() needs to remove wpautop() from the the_content filter, this re-adds it afterwards, for subsequent the_content usage.
$contentstringstringfunction _restore_wpautop_hook( $content ) { $current_priority = has_filter( 'the_content', '_restore_wpautop_hook' ); add_filter( 'the_content', 'wpautop', $current_priority - 1 ); remove_filter( 'the_content', '_restore_wpautop_hook', $current_priority ); return $content;}Introduced in 5.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/blocks.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.