Merge pull request #17441 from nabinhait/pe-ref-exchange-rate-dev

 fix: Always fetch exchange rate from ref document
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index b7ab4fe..9033f65 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -161,7 +161,7 @@
 					d.reference_name, self.party_account_currency)
 
 				for field, value in iteritems(ref_details):
-					if not d.get(field) or force:
+					if field == 'exchange_rate' or not d.get(field) or force:
 						d.set(field, value)
 
 	def validate_payment_type(self):
diff --git a/erpnext/accounts/doctype/payment_entry_reference/payment_entry_reference.json b/erpnext/accounts/doctype/payment_entry_reference/payment_entry_reference.json
index a752c6f..b6a6643 100644
--- a/erpnext/accounts/doctype/payment_entry_reference/payment_entry_reference.json
+++ b/erpnext/accounts/doctype/payment_entry_reference/payment_entry_reference.json
@@ -1,345 +1,343 @@
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- "doctype": "DocType", 
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- "editable_grid": 1, 
- "engine": "InnoDB", 
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