Add the publication date and the subtitle field in the story migration

web/modules/custom/geo_upgrade/migrations/upgrade_d7_node_story.yml

@@ -175,10 +175,10 @@ process:
 #      source: field_issue
 #      process:
 #        target_id: tid
-#  field_subtitle:
-#    -
-#      plugin: get
-#      source: field_subtitle
+  field_subtitle:
+    -
+      plugin: get
+      source: field_subtitle
   field_image:
     -
       plugin: sub_process
@@ -195,16 +195,16 @@ process:
 #      source: field_geo_volume_3
 #      process:
 #        target_id: tid
-#  field_publication_date:
-#    -
-#      plugin: sub_process
-#      source: field_publication_date
-#      process:
-#        value:
-#          plugin: format_date
-#          from_format: 'Y-m-d\TH:i:s'
-#          to_format: 'Y-m-d\TH:i:s'
-#          source: value
+  field_publication_date:
+    -
+      plugin: sub_process
+      source: field_publication_date
+      process:
+        value:
+          plugin: format_date
+          from_format: 'Y-m-d\TH:i:s'
+          to_format: 'Y-m-d'
+          source: value
   path/alias: source_path
   path/pathauto:
     plugin: default_value