[FIX] mis_builder: branche and matrix value computation

mis_builder/models/aep.py

@@ -364,7 +364,18 @@ def do_queries(
                 ):
                     # in initial mode, ignore accounts with 0 balance
                     continue
-                self._data[key][acc["account_id"][0]] = (debit * rate, credit * rate)
+                # due to branches, it's possible to have multiple acc
+                # with the same account_id
+                if acc["account_id"][0] in self._data[key]:
+                    existing_debit, existing_credit = self._data[key][
+                        acc["account_id"][0]
+                    ]
+                else:
+                    existing_debit, existing_credit = (0.0, 0.0)
+                self._data[key][acc["account_id"][0]] = (
+                    existing_debit + debit * rate,
+                    existing_credit + credit * rate,
+                )
         # compute ending balances by summing initial and variation
         for key in ends:
             domain, mode = key

mis_builder/tests/test_aep.py

@@ -410,3 +410,28 @@ def test_invalid_field(self):
                 datetime.date(self.prev_year, 12, 1),
             )
         assert "Error while querying move line source" in str(cm.exception)
+
+    def test_aep_branch(self):
+        # create branch
+        self.branch = self.res_company.create(
+            {
+                "name": "AEP Branch",
+                "parent_id": self.company.id,
+            }
+        )
+        # create branch move in March this year
+        branch_move = self._create_move(
+            date=datetime.date(self.curr_year, 3, 1),
+            amount=50,
+            debit_acc=self.account_ar,
+            credit_acc=self.account_in,
+        )
+        branch_move.company_id = self.branch
+        self.aep = AEP(self.company | self.branch)
+        self.aep.parse_expr("balp[]")
+        self.aep.done_parsing()
+        self._do_queries(
+            datetime.date(self.curr_year, 3, 1), datetime.date(self.curr_year, 3, 31)
+        )
+        variation = self._eval_by_account_id("balp[]")
+        self.assertEqual(variation, {self.account_ar.id: 550, self.account_in.id: -550})