minor fix

erpnext/buying/doctype/purchase_common/purchase_common.js

@@ -211,7 +211,8 @@ erpnext.buying.BuyingController = erpnext.TransactionController.extend({
 		var tax_count = this.frm.tax_doclist.length;
 		this.frm.doc.grand_total = flt(tax_count ?
 			this.frm.tax_doclist[tax_count - 1].total : this.frm.doc.net_total);
-		this.frm.doc.grand_total_import = flt(this.frm.doc.grand_total / this.frm.doc.conversion_rate);
+		this.frm.doc.grand_total_import = flt(tax_count ?
+			flt(this.frm.doc.grand_total / this.frm.doc.conversion_rate) : this.frm.doc.net_total_import;
 
 		this.frm.doc.total_tax = flt(this.frm.doc.grand_total - this.frm.doc.net_total,
 			precision("total_tax"));

erpnext/controllers/buying_controller.py

@@ -111,7 +111,8 @@ class BuyingController(StockController):
 
 	def calculate_totals(self):
 		self.grand_total = flt(self.tax_doclist[-1].total if self.tax_doclist else self.net_total)
-		self.grand_total_import = flt(self.grand_total / self.conversion_rate)
+		self.grand_total_import = flt(self.grand_total / self.conversion_rate) \
+			if self.tax_doclist else self.net_total_import
 
 		self.total_tax = flt(self.grand_total - self.net_total, self.precision("total_tax"))
 

erpnext/controllers/selling_controller.py

@@ -218,7 +218,8 @@ class SellingController(StockController):
 	def calculate_totals(self):
 		self.grand_total = flt(self.tax_doclist[-1].total if self.tax_doclist else self.net_total)
 
-		self.grand_total_export = flt(self.grand_total / self.conversion_rate)
+		self.grand_total_export = flt(self.grand_total / self.conversion_rate) \
+			if self.tax_doclist else self.net_total_export
 
 		self.other_charges_total = flt(self.grand_total - self.net_total, self.precision("other_charges_total"))
 

erpnext/selling/sales_common.js

@@ -342,7 +342,8 @@ erpnext.selling.SellingController = erpnext.TransactionController.extend({
 		var tax_count = this.frm.tax_doclist.length;
 
 		this.frm.doc.grand_total = flt(tax_count ? this.frm.tax_doclist[tax_count - 1].total : this.frm.doc.net_total);
-		this.frm.doc.grand_total_export = flt(this.frm.doc.grand_total / this.frm.doc.conversion_rate);
+		this.frm.doc.grand_total_export = flt(tax_count ?
+			flt(this.frm.doc.grand_total / this.frm.doc.conversion_rate) : this.frm.doc.net_total_export;
 
 		this.frm.doc.other_charges_total = flt(this.frm.doc.grand_total - this.frm.doc.net_total,
 			precision("other_charges_total"));