diff --git a/erpnext/patches/4_0/remove_india_specific_fields.py b/erpnext/patches/4_0/remove_india_specific_fields.py
index 68592cb463..3070959f34 100644
--- a/erpnext/patches/4_0/remove_india_specific_fields.py
+++ b/erpnext/patches/4_0/remove_india_specific_fields.py
@@ -6,6 +6,7 @@ import frappe
 from frappe.core.doctype.custom_field.custom_field import create_custom_field_if_values_exist
 
 def execute():
+	frappe.db.sql("delete from tabDocField where parent='Salary Slip' and options='Grade'")
 	docfields = {
 		("Purchase Receipt", "challan_no"): frappe.get_meta("Purchase Receipt").get_field("challan_no"),
 		("Purchase Receipt", "challan_date"): frappe.get_meta("Purchase Receipt").get_field("challan_date"),
@@ -18,6 +19,8 @@ def execute():
 	}
 
 	for (doctype, fieldname), df in docfields.items():
+		if not df:
+			continue
 		opts = df.as_dict()
 		if df.idx >= 2:
 			opts["insert_after"] = frappe.get_meta(doctype).get("fields")[df.idx - 2].fieldname
diff --git a/erpnext/patches/4_0/split_email_settings.py b/erpnext/patches/4_0/split_email_settings.py
index 40aad390b1..630e954c6e 100644
--- a/erpnext/patches/4_0/split_email_settings.py
+++ b/erpnext/patches/4_0/split_email_settings.py
@@ -8,7 +8,7 @@ def execute():
 	frappe.reload_doc("core", "doctype", "outgoing_email_settings")
 	frappe.reload_doc("support", "doctype", "support_email_settings")
 	
-	email_settings = frappe.get_doc("Email Settings")
+	email_settings = get_email_settings()
 	map_outgoing_email_settings(email_settings)
 	map_support_email_settings(email_settings)
 	frappe.delete_doc("Doctype", "Email Settings")
@@ -48,3 +48,9 @@ def map_support_email_settings(email_settings):
 	
 	support_email_settings.save()
 	
+def get_email_settings():
+	ret = {}
+	for field, value in frappe.db.sql("select field, value from tabSingles where doctype='Email Settings'"):
+		ret[field] = value
+	return ret
+
diff --git a/erpnext/patches/4_0/update_user_properties.py b/erpnext/patches/4_0/update_user_properties.py
index 2e224ce91b..dfec48bb96 100644
--- a/erpnext/patches/4_0/update_user_properties.py
+++ b/erpnext/patches/4_0/update_user_properties.py
@@ -86,7 +86,9 @@ def add_employee_restrictions_to_leave_approver():
 			where `tabEmployee Leave Approver`.parent=`tabEmployee`.name)
 		or ifnull(`reports_to`, '')!=''"""):
 		
-		frappe.get_doc("Employee", employee).save()
+		emp = frappe.get_doc("Employee", employee)
+		emp.ignore_links = True
+		emp.save()
 
 def update_permissions():
 	# clear match conditions other than owner