data, upgrade: Change mail_access_groups default and service/*/extra_groups defaults

Author: sirainen

data/settings.js

@@ -7418,6 +7418,11 @@ The details of how this setting works depends on the used protocol:
 
 	mail_access_groups: {
 		values: setting_types.BOOLLIST,
+		default: '[[setting,default_internal_group]]',
+		changed: {
+			settings_mail_access_groups_changed: `
+Changed from empty to [[setting,default_internal_group]].`
+		},
 		text: `
 Supplementary groups that are granted access for mail processes.
 

data/updates.js

@@ -145,6 +145,7 @@ export const updates = {
 	settings_inet_listener_type_added: '2.4.0',
 	settings_login_socket_path_added: '2.4.0',
 	settings_lmtp_user_concurrency_limit_changed: '2.4.1',
+	settings_mail_access_groups_changed: '2.4.3',
 	settings_mail_attachment_sis_option_changed: '2.4.0',
 	settings_mail_cache_max_headers_count_added: '2.4.0',
 	settings_mail_cache_max_header_name_length_added: '2.4.0',

docs/installation/upgrade/2.4-to-2.4.x.md

@@ -41,3 +41,22 @@ changed to `2.4.2`.
 | `service/anvil/unix_listener/anvil/group` | (empty = root) | `$SET:default_internal_group` |
 | [[setting,mailbox_directory_name_legacy]] | `yes` | `no` |
 | [[setting,mail_attachment_detection_options]] |  | `add-flags content-type=!application/signature` |
+
+### v2.4.2 to v2.4.3
+
+#### Changed Setting Defaults
+
+These changes don't take effect until [[setting,dovecot_config_version]] is
+changed to `2.4.3`.
+
+| Setting | Old Default Value | New Default Value |
+| ------- | ----------------- | ----------------- |
+| [[setting,mail_access_groups]] |  | [[setting,default_internal_group]] |
+| `service/doveadm/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/imap/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/imap-urlauth-worker/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/indexer-worker/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/lmtp/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/pop3/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/submission/service_extra_groups` | [[setting,default_internal_group]] | |
+| `service/managesieve/service_extra_groups` | [[setting,default_internal_group]] | |