diff --git a/erpnext/accounts/doctype/account/account.py b/erpnext/accounts/doctype/account/account.py
index 68efe37719..0e57b3f198 100644
--- a/erpnext/accounts/doctype/account/account.py
+++ b/erpnext/accounts/doctype/account/account.py
@@ -123,7 +123,9 @@ class Account(NestedSet):
 				doc.flags.ignore_root_company_validation = True
 				doc.update({
 					"company": company,
-					"account_currency": None,
+					# parent account's currency should be passed down to child account's curreny
+					# if it is None, it picks it up from default company currency, which might be unintended
+					"account_currency": self.account_currency,
 					"parent_account": parent_acc_name_map[company]
 				})
 				doc.save()
diff --git a/erpnext/accounts/report/bank_reconciliation_statement/bank_reconciliation_statement.py b/erpnext/accounts/report/bank_reconciliation_statement/bank_reconciliation_statement.py
index 1923f78cf8..63317c52d8 100644
--- a/erpnext/accounts/report/bank_reconciliation_statement/bank_reconciliation_statement.py
+++ b/erpnext/accounts/report/bank_reconciliation_statement/bank_reconciliation_statement.py
@@ -58,8 +58,7 @@ def get_columns():
 		{
 			"fieldname": "payment_document",
 			"label": _("Payment Document Type"),
-			"fieldtype": "Link",
-			"options": "DocType",
+			"fieldtype": "Data",
 			"width": 220
 		},
 		{
diff --git a/erpnext/regional/report/gstr_1/gstr_1.py b/erpnext/regional/report/gstr_1/gstr_1.py
index e8c170e721..2da1085732 100644
--- a/erpnext/regional/report/gstr_1/gstr_1.py
+++ b/erpnext/regional/report/gstr_1/gstr_1.py
@@ -161,8 +161,9 @@ class Gstr1Report(object):
 					"gst_category": ["in", ["Registered Regular", "Deemed Export", "SEZ"]]
 			})
 
-			conditions += """ and ifnull(gst_category, '') != 'Overseas' and is_return != 1
-				and customer in ({0})""".format(", ".join([frappe.db.escape(c.name) for c in customers]))
+			if customers:
+				conditions += """ and ifnull(gst_category, '') != 'Overseas' and is_return != 1
+					and customer in ({0})""".format(", ".join([frappe.db.escape(c.name) for c in customers]))
 
 		if self.filters.get("type_of_business") in ("B2C Large", "B2C Small"):
 			b2c_limit = frappe.db.get_single_value('GST Settings', 'b2c_limit')
@@ -174,11 +175,11 @@ class Gstr1Report(object):
 				"gst_category": ["in", ["Unregistered"]]
 		})
 
-		if self.filters.get("type_of_business") ==  "B2C Large":
+		if self.filters.get("type_of_business") ==  "B2C Large" and customers:
 			conditions += """ and SUBSTR(place_of_supply, 1, 2) != SUBSTR(company_gstin, 1, 2)
 				and grand_total > {0} and is_return != 1 and customer in ({1})""".\
 					format(flt(b2c_limit), ", ".join([frappe.db.escape(c.name) for c in customers]))
-		elif self.filters.get("type_of_business") ==  "B2C Small":
+		elif self.filters.get("type_of_business") ==  "B2C Small" and customers:
 			conditions += """ and (
 				SUBSTR(place_of_supply, 1, 2) = SUBSTR(company_gstin, 1, 2)
 					or grand_total <= {0}) and is_return != 1 and customer in ({1})""".\