X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/b9fd7e3f374248a61159e4750a84e38d1c48d5dd..45cc809dfeab1d603e80cec3d44770d7f5a7c8ae:/services/api/app/models/collection.rb

diff --git a/services/api/app/models/collection.rb b/services/api/app/models/collection.rb
index caac5611e7..8b549a71ab 100644
--- a/services/api/app/models/collection.rb
+++ b/services/api/app/models/collection.rb
@@ -259,9 +259,10 @@ class Collection < ArvadosModel
     should_preserve_version = should_preserve_version? # Time sensitive, cache value
     return(yield) unless (should_preserve_version || syncable_updates.any?)
 
-    # Put aside the changes because with_lock forces a record reload
+    # Put aside the changes because with_lock does a record reload
     changes = self.changes
     snapshot = nil
+    restore_attributes
     with_lock do
       # Copy the original state to save it as old version
       if should_preserve_version
@@ -303,12 +304,18 @@ class Collection < ArvadosModel
 
   def syncable_updates
     updates = {}
-    (syncable_attrs & self.changes.keys).each do |attr|
+    if self.changes.any?
+      changes = self.changes
+    else
+      # If called after save...
+      changes = self.saved_changes
+    end
+    (syncable_attrs & changes.keys).each do |attr|
       if attr == 'uuid'
         # Point old versions to current version's new UUID
-        updates['current_version_uuid'] = self.changes[attr].last
+        updates['current_version_uuid'] = changes[attr].last
       else
-        updates[attr] = self.changes[attr].last
+        updates[attr] = changes[attr].last
       end
     end
     return updates
@@ -316,7 +323,7 @@ class Collection < ArvadosModel
 
   def sync_past_versions
     updates = self.syncable_updates
-    Collection.where('current_version_uuid = ? AND uuid != ?', self.uuid_was, self.uuid_was).each do |c|
+    Collection.where('current_version_uuid = ? AND uuid != ?', self.uuid_before_last_save, self.uuid_before_last_save).each do |c|
       c.attributes = updates
       # Use a different validation context to skip the 'past_versions_cannot_be_updated'
       # validator, as on this case it is legal to update some fields.