Use stable order for FEC lines

issue7983
review49691002

account.py

@@ -225,7 +225,8 @@ class AccountFrFEC(Wizard):
                 & period.fiscalyear.in_(fiscalyear_ids),
                 group_by=[
                     account.id, account.code, account.name,
-                    party.code, party.name]))
+                    party.code, party.name],
+                order_by=account.code))
         cursor.execute(*query)
         for row in cursor:
             _, code, name, party_code, party_name, balance = row
@@ -271,6 +272,7 @@ class AccountFrFEC(Wizard):
             domain,
             order=[
                 ('move.post_number', 'ASC'),
+                ('id', 'ASC'),
                 ])
 
     def get_row(self, line, format_date, format_number):

tests/FEC.csv

@@ -1,5 +1,5 @@
 JournalCode	JournalLib	EcritureNum	EcritureDate	CompteNum	CompteLib	CompAuxNum	CompAuxLib	PieceRef	PieceDate	EcritureLib	Debit	Credit	EcritureLet	DateLet	ValidDate	Montantdevise	Idevise
-OUV	Balance Initiale	0	20180101	797	Transferts de charges exceptionnelles			-	20180101	-	0,00	5,00			20180101		
 OUV	Balance Initiale	0	20180101	4967	Autres comptes débiteurs	2	Party	-	20180101	-	5,00	0,00			20180101		
+OUV	Balance Initiale	0	20180101	797	Transferts de charges exceptionnelles			-	20180101	-	0,00	5,00			20180101		
 REV	Revenue	1	20180101	797	Transferts de charges exceptionnelles			-	20180101	-	0,00	10,00			20180101		
 REV	Revenue	1	20180101	4967	Autres comptes débiteurs	2	Party	-	20180101	-	10,00	0,00			20180101