"ctools.block_plugin.*" config schema doesn't inherit from "block.settings.*"

Still got this issue with panels_variant display variant used

"ctools.block_plugin" doesn't inherit from "block.settings.views_block:*"

Got the similar issue with panels_everywhere_variant display variant

system_branding_block is used there and config schema seems to be ok for this block in system.schema.yml:

block.settings.system_branding_block:
  type: block_settings
  label: 'Branding block'
  constraints:
    FullyValidatable: ~
  mapping:
    use_site_logo:
      type: boolean
      label: 'Use site logo'
    use_site_name:
      type: boolean
      label: 'Use site name'
    use_site_slogan:
      type: boolean
      label: 'Use site slogan'

but looks like ctools.block_plugin.* schema doesn't inherit it

Attaching patch with additional option added to schema.

@ilya.no issue can happen not only for views_block schema, but for other blocks as well

+++ b/modules/ctools_views/ctools_views.module
@@ -21,6 +21,23 @@ function ctools_views_views_plugins_display_alter(&$displays) {
+  $definitions['ctools.block_plugin.*']['mapping']['views_label'] = [
+    'type' => 'string',
+    'label' => 'Views label'
...
+  $definitions['ctools.block_plugin.*']['mapping']['items_per_page'] = [
+    'type' => 'string',
+    'label' => 'Items per page'
...
+  $definitions['ctools.block_plugin.*']['mapping']['exposed'] = [
+    'type' => 'sequence',
+    'label' => 'Exposed filter values',
+    'sequence' => [
+      'type' => 'views.filter.[plugin_id]',

why defined this way? I bet it may inherit it from views plugins

SO the module will just extend original schema keeping default properties inline with base definitions

currently we have next definition in ctools.schema.yml

ctools.block_plugin.*:
  type: block.settings.[id]
  mapping:
    region:
      type: string
      label: 'Region'
    weight:
      type: integer
      label: 'Weight'
    uuid:
      type: string
      label: 'UUID'
    context_mapping:
      type: sequence
      label: 'Context assignments'
      sequence:
        type: string