fix: make use of 'flt' to prevent really low precision exc gain/loss

(cherry picked from commit 0aa72f8)

erpnext/controllers/accounts_controller.py

@@ -46,6 +46,7 @@
 from erpnext.accounts.utils import (
 	create_gain_loss_journal,
 	get_account_currency,
+	get_currency_precision,
 	get_fiscal_years,
 	validate_fiscal_year,
 )
@@ -1299,10 +1300,12 @@ def make_exchange_gain_loss_journal(
 				# These are generated by Sales/Purchase Invoice during reconciliation and advance allocation.
 				# and below logic is only for such scenarios
 				if args:
+					precision = get_currency_precision()
 					for arg in args:
 						# Advance section uses `exchange_gain_loss` and reconciliation uses `difference_amount`
 						if (
-							arg.get("difference_amount", 0) != 0 or arg.get("exchange_gain_loss", 0) != 0
+							flt(arg.get("difference_amount", 0), precision) != 0
+							or flt(arg.get("exchange_gain_loss", 0), precision) != 0
 						) and arg.get("difference_account"):
 
 							party_account = arg.get("account")