fix: use value from currency exchange when exchange api is disabled (…

…backport #46137) (#46309)

fix: use value from currency exchange when exchange api is disabled (#46137)

(cherry picked from commit 2d26bff)

Co-authored-by: Venkatesh <47534423+venkat102@users.noreply.github.com>

erpnext/setup/utils.py

@@ -68,9 +68,6 @@ def get_exchange_rate(from_currency, to_currency, transaction_date=None, args=No
 	if not transaction_date:
 		transaction_date = nowdate()
 
-	if rate := get_pegged_rate(from_currency, to_currency, transaction_date):
-		return rate
-
 	currency_settings = frappe.get_doc("Accounts Settings").as_dict()
 	allow_stale_rates = currency_settings.get("allow_stale")
 
@@ -100,6 +97,9 @@ def get_exchange_rate(from_currency, to_currency, transaction_date=None, args=No
 	if frappe.get_cached_value("Currency Exchange Settings", "Currency Exchange Settings", "disabled"):
 		return 0.00
 
+	if rate := get_pegged_rate(from_currency, to_currency, transaction_date):
+		return rate
+
 	try:
 		cache = frappe.cache()
 		key = f"currency_exchange_rate_{transaction_date}:{from_currency}:{to_currency}"