Only run GB 19.8 hotfix for non-admin users (#41110)

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/12801347840

Upstream-Ref: Automattic/jetpack@dc47154

CHANGELOG.md

@@ -21,6 +21,9 @@ This is an alpha version! The changes listed here are not final.
 ### Removed
 - Global Styles: Revert changes that hide notice in distraction free mode
 
+### Fixed
+- GB 19.8.0 hotfix: further refine hotfix so site editor opens correct template by default
+
 ## [6.1.0] - 2025-01-10
 ### Added
 - Add watch command for this package in composer.json file. [#40927]

src/features/wpcom-hotfixes/wpcom-hotfixes.php

@@ -13,6 +13,12 @@
 add_filter(
 	'register_post_type_args',
 	function ( $args ) {
+		if ( current_user_can( 'manage_options' ) ) {
+			// Admins still need default_rendering_mode for the site editor to select the correct default template.
+			// See: p1736989403607879-slack-C02FMH4G8
+			return $args;
+		}
+
 		unset( $args['default_rendering_mode'] );
 		return $args;
 	},