reverted:
--- b/multiversion.install
+++ a/multiversion.install
@@ -51,9 +51,6 @@
   $schema = $database->schema();
   $table = 'url_alias';
   $field = 'workspace';
-  // Drop all aliases that were created after content import from the temporary
-  // storage.
-  Database::getConnection()->delete($table)->condition($field, 0)->execute();
   if ($schema->fieldExists($table, $field)) {
     $schema->dropField($table, $field);
   }
only in patch2:
unchanged:
--- a/src/MultiversionMigration.php
+++ b/src/MultiversionMigration.php
@@ -259,6 +259,11 @@ class MultiversionMigration implements MultiversionMigrationInterface {
           ],
         ];
       }
+      // We are not deleting old url aliases, that mean we don't need to create
+      // them upon migration process - ignore path aliases field.
+      if ('node' === $entity_type->id()) {
+        unset($map['path']);
+      }
     }
 
     return $map;