only in patch2:
unchanged:
--- a/src/EventSubscriber/FieldStorageSubscriber.php
+++ b/src/EventSubscriber/FieldStorageSubscriber.php
@@ -140,12 +140,18 @@ class FieldStorageSubscriber implements EventSubscriberInterface {
         }
         $tables[$table][] = $column;
         if ($entity_type->isRevisionable() && ($storage_definitions[$field_name]->isRevisionable())) {
-          if ($mapping->requiresDedicatedTableStorage($field_storage_definition)) {
-            $tables[$mapping->getDedicatedRevisionTableName($storage_definitions[$field_name])][] = $column;
+          try {
+            if ($mapping->requiresDedicatedTableStorage($storage_definitions[$field_name])) {
+              $tables[$mapping->getDedicatedRevisionTableName($storage_definitions[$field_name])][] = $column;
+            }
+            elseif ($mapping->allowsSharedTableStorage($storage_definitions[$field_name])) {
+              $revision_table = $entity_type->getRevisionDataTable() ?: $entity_type->getRevisionTable();
+              $tables[$revision_table][] = $column;
+              $tables[$revision_table] = array_unique($tables[$revision_table]);
+            }
           }
-          elseif ($mapping->allowsSharedTableStorage($field_storage_definition)) {
-            $revision_table = $entity_type->getRevisionDataTable() ?: $entity_type->getRevisionTable();
-            $tables[$revision_table][] = $column;
+          catch (SqlContentEntityStorageException $e) {
+            // Nothing to do if the revision table doesn't exist.
           }
         }
       }