diff --git a/addons/account/models/reconciliation_widget.py b/addons/account/models/reconciliation_widget.py
index 8bcd22ab50d..c7700ae823a 100644
--- a/addons/account/models/reconciliation_widget.py
+++ b/addons/account/models/reconciliation_widget.py
@@ -522,22 +522,16 @@ class AccountReconciliation(models.AbstractModel):
         ])
 
         domain = expression.OR([domain_reconciliation, domain_matching])
-        partner_domain = []
         if partner_id:
-            partner_domain = [('partner_id', '=', partner_id)]
-            domain = expression.AND([domain, partner_domain])
+            domain = expression.AND([domain, [('partner_id', '=', partner_id)]])
 
         # Domain factorized for all reconciliation use cases
         if search_str:
             str_domain = self._domain_move_lines(search_str=search_str)
-            if not partner_id:
-                partner_domain = [('partner_id.name', 'ilike', search_str)]
-
             str_domain = expression.OR([
                 str_domain,
-                partner_domain,
+                [('partner_id.name', 'ilike', search_str)]
             ])
-
             domain = expression.AND([
                 domain,
                 str_domain
@@ -553,7 +547,6 @@ class AccountReconciliation(models.AbstractModel):
 
         if st_line.company_id.account_bank_reconciliation_start:
             domain = expression.AND([domain, [('date', '>=', st_line.company_id.account_bank_reconciliation_start)]])
-
         return domain
 
     @api.model
diff --git a/addons/account/tests/test_reconciliation_widget.py b/addons/account/tests/test_reconciliation_widget.py
index 2bee0773251..840059ceb5c 100644
--- a/addons/account/tests/test_reconciliation_widget.py
+++ b/addons/account/tests/test_reconciliation_widget.py
@@ -58,6 +58,7 @@ class TestReconciliationWidget(TestReconciliation):
     def test_filter_partner1(self):
         inv1 = self.create_invoice(currency_id=self.currency_euro_id)
         inv2 = self.create_invoice(currency_id=self.currency_euro_id)
+        partner = inv1.partner_id
 
         receivable1 = inv1.move_id.line_ids.filtered(lambda l: l.account_id.internal_type == 'receivable')
         receivable2 = inv2.move_id.line_ids.filtered(lambda l: l.account_id.internal_type == 'receivable')
@@ -76,7 +77,31 @@ class TestReconciliationWidget(TestReconciliation):
             'date': time.strftime('%Y-07-15'),
         })
 
-        # This is like opening the widget, and type "deco" in the filter
+        # This is like input a partner in the widget
+        mv_lines_rec = self.env['account.reconciliation.widget'].get_move_lines_for_bank_statement_line(
+            bank_stmt_line.id,
+            partner_id=partner.id,
+            excluded_ids=[],
+            search_str=False
+        )
+        mv_lines_ids = [l['id'] for l in mv_lines_rec]
+
+        self.assertTrue(receivable1.id in mv_lines_ids)
+        self.assertTrue(receivable2.id in mv_lines_ids)
+
+        # With a partner set, type the invoice reference in the filter
+        mv_lines_rec = self.env['account.reconciliation.widget'].get_move_lines_for_bank_statement_line(
+            bank_stmt_line.id,
+            partner_id=partner.id,
+            excluded_ids=[],
+            search_str=inv1.reference
+        )
+        mv_lines_ids = [l['id'] for l in mv_lines_rec]
+
+        self.assertTrue(receivable1.id in mv_lines_ids)
+        self.assertFalse(receivable2.id in mv_lines_ids)
+
+        # Without a partner set, type "deco" in the filter
         mv_lines_rec = self.env['account.reconciliation.widget'].get_move_lines_for_bank_statement_line(
             bank_stmt_line.id,
             partner_id=False,
@@ -88,8 +113,7 @@ class TestReconciliationWidget(TestReconciliation):
         self.assertTrue(receivable1.id in mv_lines_ids)
         self.assertTrue(receivable2.id in mv_lines_ids)
 
-        # This is like clicking on the first receivable
-        partner = inv1.partner_id
+        # With a partner set, type "deco" in the filter and click on the first receivable
         mv_lines_rec = self.env['account.reconciliation.widget'].get_move_lines_for_bank_statement_line(
             bank_stmt_line.id,
             partner_id=partner.id,