Merge branch 'develop' of github.com:OS2web/os2web8 into develop

Author: andriyun

web/modules/custom/ballerup_d7_migration/config/install/migrate_plus.migration.ballerup_d7_paragraph_accordion.yml

@@ -9,13 +9,9 @@ source:
   node_type: info_page
 process:
   field_os2web_accordion_heading:
-    -
-      plugin: skip_row_if_not_set
-      index: 0
-      source: field_accordion_title
     -
       plugin: skip_on_empty
-      method: row
+      method: process
       source: field_accordion_title
       message: 'Field field_accordion_title is missing'
   field_os2web_accordion_reference: