fix: populate contact fields when creating quotation from customer

(cherry picked from commit 75b2c2c83d)

erpnext/selling/doctype/customer/customer.py

@@ -512,6 +512,9 @@ def _set_missing_values(source, target):
 
 	if contact:
 		target.contact_person = contact[0].parent
+		target.contact_display, target.contact_email, target.contact_mobile = frappe.get_value(
+			"Contact", contact[0].parent, ["full_name", "email_id", "mobile_no"]
+		)
 
 
 @frappe.whitelist()