[FIX] web: Form: delete the correct record

When the user duplicated a record 'A', and deleted the new record
'A (copy)' directly, the wrong record was deleted: 'A' was deleted
instead of 'A (copy)', because de id of 'A' was bound to the delete
handler, and it wasn't updated after the duplication.

Also correctly updates the record's offset after the deletion, so
that it doesn't produce a warning when deleting the last record of
the dataset.

1 files changed, 1 insertions, 0 deletions

diff --git a/addons/web/static/src/js/views/basic/basic_model.js b/addons/web/static/src/js/views/basic/basic_model.js
index 6c23550ba2e..ae48a98dd13 100644
--- a/addons/web/static/src/js/views/basic/basic_model.js
+++ b/addons/web/static/src/js/views/basic/basic_model.js
@@ -208,6 +208,7 @@ var BasicModel = AbstractModel.extend({
                         delete self.localData[record.id];
                     } else {
                         record.res_ids.splice(record.offset, 1);
+                        record.offset = Math.min(record.offset, record.res_ids.length - 1);
                         record.res_id = record.res_ids[record.offset];
                         record.count--;
                     }