diff --git a/issue7677.diff b/issue7677.diff
new file mode 100644
index 0000000..06c3df7
--- /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 dafa3c4608..dce8e790b1 100644
+--- a/tryton/trytond/trytond/model/modelview.py
++++ b/tryton/trytond/trytond/model/modelview.py
+@@ -786,7 +786,8 @@ 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 d115c08..31632f1 100644
--- a/series
+++ b/series
@@ -109,3 +109,5 @@ issue12583.diff # [stock_lot] Missing search function in default_uom field in st
 issue12109.diff # [sale] [purchase] [sale_product_customer] Replace _parent_ expression with direct field on sale and purchase line
 
 issue11574.diff # [stock] #162150 missing warehouse in stock.shipment.in.return. Since Support warehouse pickup add warehouse
+
+issue7677.diff # [trytond] Do not set rec_name for unsaved record