Issue #2110615 by swentel, dawehner, xjm, chx: Do not ship with default UUIDs.

core/includes/install.inc

@@ -663,8 +663,9 @@ function drupal_install_system($install_state) {
     ->set('enabled.system', 0)
     ->save();
 
-  // Update the module list to include it.
+  // Update the module list to include it. Reboot the kernel too.
   \Drupal::moduleHandler()->setModuleList(array('system' => $system_path . '/system.module'));
+  $kernel->updateModules(array('system' => $system_path . '/system.module'));
 
   \Drupal::service('config.installer')->installDefaultConfig('module', 'system');
 

core/lib/Drupal/Core/Config/Entity/ConfigEntityBase.php

@@ -34,6 +34,13 @@ abstract class ConfigEntityBase extends Entity implements ConfigEntityInterface
    */
   public $status = TRUE;
 
+  /**
+   * The UUID for this entity.
+   *
+   * @var string
+   */
+  public $uuid;
+
   /**
    * Whether the config is being created, updated or deleted through the
    * import process.

core/modules/aggregator/config/views.view.aggregator_rss_feed.yml

@@ -140,5 +140,4 @@ label: 'Aggregator RSS feed'
 module: views
 id: aggregator_rss_feed
 tag: aggregator
-uuid: 7dfa5cb7-2248-4d52-8c00-cd8e02d1e78e
 langcode: en

core/modules/aggregator/tests/modules/aggregator_test_views/test_views/views.view.test_aggregator_items.yml

@@ -166,4 +166,3 @@ module: views
 id: test_aggregator_items
 tag: ''
 langcode: en
-uuid: 19dd643f-9324-44df-ac72-0be915b334d1

core/modules/block/custom_block/config/custom_block.type.basic.yml

 id: basic
 label: 'Basic block'
-uuid: 4bcdec7a-c867-404b-855d-939a11420b12
 revision: 0
 description: 'A basic block contains a title and a body.'
 langcode: en

core/modules/block/custom_block/config/entity.view_mode.custom_block.full.yml

 id: custom_block.full
-uuid: 96f20030-6465-43ed-9e00-f2a16f52ef6e
 label: Full
 status: false
 cache: true

core/modules/book/config/entity.view_mode.node.print.yml

 id: node.print
-uuid: 58ded254-7114-4e5b-a50d-1351c48807d8
 label: Print
 status: false
 cache: true

core/modules/book/config/node.type.book.yml

 type: book
-uuid: c5ca890d-7db7-4c45-bf0f-0a12430923ff
 name: 'Book page'
 description: '<em>Books</em> have a built-in hierarchical navigation. Use for handbooks or tutorials.'
 help: ''

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.mobile.yml

 id: theme.breakpoint_test_theme.mobile
-uuid: 3ae8bfe6-496b-478c-a811-17424038f49c
 name: mobile
 label: mobile
 mediaQuery: '(min-width: 0px)'

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.narrow.yml

 id: theme.breakpoint_test_theme.narrow
-uuid: 1d791b4a-7ccf-4c93-a800-c2bc2594cc62
 name: narrow
 label: narrow
 mediaQuery: '(min-width: 560px)'

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.tv.yml

 id: theme.breakpoint_test_theme.tv
-uuid: e0ffa737-0570-4891-9809-9bce925673ca
 name: tv
 label: tv
 mediaQuery: 'only screen and (min-width: 3456px)'

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint.theme.breakpoint_test_theme.wide.yml

 id: theme.breakpoint_test_theme.wide
-uuid: 1561574d-99f8-48a6-b304-4e2b617673b2
 name: wide
 label: wide
 mediaQuery: '(min-width: 851px)'

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint_group.theme.breakpoint_test_theme.breakpoint_test_theme.yml

 id: theme.breakpoint_test_theme.breakpoint_test_theme
-uuid: 94b96e6e-a032-4b29-8100-efd5bf854fd1
 name: breakpoint_test_theme
 label: 'Breakpoint test theme'
 breakpoint_ids:

core/modules/breakpoint/tests/themes/breakpoint_test_theme/config/breakpoint.breakpoint_group.theme.breakpoint_test_theme.test.yml

 id: theme.breakpoint_test_theme.test
-uuid: fcc25180-7e18-4149-8962-98d706faa59a
 name: test
 label: 'Test Theme'
 breakpoint_ids:

core/modules/comment/config/entity.view_mode.comment.full.yml

 id: comment.full
-uuid: 06ab5b16-e197-4242-b72c-4453793fabba
 label: 'Full comment'
 status: false
 cache: true

core/modules/comment/config/system.action.comment_publish_action.yml

 id: comment_publish_action
-uuid: 890a554f-f083-400c-8d18-2412f2daa140
 label: 'Publish comment'
 status: true
 langcode: en

core/modules/comment/config/system.action.comment_save_action.yml

 id: comment_save_action
-uuid: 10a7269e-b454-40d6-8d00-0f9ffed58f74
 label: 'Save comment'
 status: true
 langcode: en

core/modules/comment/config/system.action.comment_unpublish_action.yml

 id: comment_unpublish_action
-uuid: 64c41e18-26c2-4e54-9747-71018ea27877
 label: 'Unpublish comment'
 status: true
 langcode: en

core/modules/comment/config/views.view.comments_recent.yml

@@ -227,4 +227,3 @@ module: views
 id: comments_recent
 tag: default
 langcode: en
-uuid: 67212880-6a63-453b-a902-2d13580f7d1c

core/modules/comment/tests/modules/comment_test_views/test_views/views.view.test_comment_row.yml

@@ -141,4 +141,3 @@ module: views
 id: test_comment_row
 tag: ''
 langcode: en
-uuid: fb77b691-eeef-4ac8-8382-15f5fd25aae0