diff --git a/issue7677.diff b/issue7677.diff
new file mode 100644
index 0000000..06d4c62
--- /dev/null
+++ b/issue7677.diff
@@ -0,0 +1,14 @@
+diff --git a/tryton/trytond/trytond/model/modelview.py b/tryton/trytond/trytond/model/modelview.py
+index 8d5cf199a8..ec32e02f57 100644
+--- a/tryton/trytond/trytond/model/modelview.py
++++ b/tryton/trytond/trytond/model/modelview.py
+@@ -825,7 +825,8 @@ class ModelView(Model):
+                 continue
+             if field._type in ('many2one', 'one2one', 'reference'):
+                 if value:
+-                    if isinstance(value, ModelStorage):
++                    if isinstance(value, ModelStorage)
++                            and value.id and value.id >= 0):
+                         changed['%s.' % fname] = {
+                             'rec_name': value.rec_name,
+                             }
diff --git a/series b/series
index 7eafa16..db888cf 100644
--- a/series
+++ b/series
@@ -53,3 +53,5 @@ issue12480.diff # [trytond] Support GIN index with btree_gin PostgreSQL extensio
 merge_request779.diff # [account_payment] Warn when submitting, approving or proceeding payment with reconciled line
 
 issue12576.diff # [account_stock_eu] Could not find the intrastat countries for moves
+
+issue7677.diff # [trytond] Do not set rec_name for unsaved record