Ticket #30854: 30854.4.diff

src/wp-includes/default-filters.php

@@ -401 +401 @@
 add_action( 'shutdown', 'wp_ob_end_flush_all', 1 );
 // Create a revision whenever a post is updated.
 add_action( 'post_updated', 'wp_save_post_revision', 10, 1 );
+add_action( 'new_to_publish', 'wp_save_post_revision', 10, 1 );
 add_action( 'publish_post', '_publish_post_hook', 5, 1 );
 add_action( 'transition_post_status', '_transition_post_status', 5, 3 );
 add_action( 'transition_post_status', '_update_term_count_on_transition_post_status', 10, 3 );

src/wp-includes/theme.php

@@ -2017 +2017 @@
         } else {
                 $r = wp_insert_post( wp_slash( $post_data ), true );
 
-                if ( ! is_wp_error( $r ) ) {
-                        if ( get_stylesheet() === $args['stylesheet'] ) {
-                                set_theme_mod( 'custom_css_post_id', $r );
-                        }
-
-                        // Trigger creation of a revision. This should be removed once #30854 is resolved.
-                        if ( 0 === count( wp_get_post_revisions( $r ) ) ) {
-                                wp_save_post_revision( $r );
-                        }
+                if ( ! is_wp_error( $r ) && get_stylesheet() === $args['stylesheet'] ) {
+                        set_theme_mod( 'custom_css_post_id', $r );
                 }
         }
 

tests/phpunit/tests/post/revisions.php

@@ -654 +654 @@
 
                 $this->assertWPError( $revision );
         }
+
+        /**
+         * @ticket 30854
+         */
+        function test_wp_first_revision_is_not_lost() {
+                $post = self::factory()->post->create_and_get( array(
+                        'post_title' => 'some-post',
+                        'post_type' => 'post',
+                        'post_content' => 'Initial Content',
+                ) );
+
+                wp_update_post( array(
+                        'ID' => $post->ID,
+                        'post_content' => 'Update #1',
+                ) );
+
+                wp_update_post( array(
+                        'ID' => $post->ID,
+                        'post_content' => 'Update #2',
+                ) );
+
+                $revisions = wp_get_post_revisions( $post->ID );
+                $earliest_revision = end( $revisions );
+
+                $this->assertEquals( 'Initial Content', $earliest_revision->post_content );
+        }
 }