fix: prev_doc
diff --git a/erpnext/hr/doctype/employee/employee.py b/erpnext/hr/doctype/employee/employee.py
index d407945..3fc330e 100755
--- a/erpnext/hr/doctype/employee/employee.py
+++ b/erpnext/hr/doctype/employee/employee.py
@@ -216,7 +216,7 @@
doc.db_set("employee", self.name)
def reset_employee_emails_cache(self):
- prev_doc = self.get_doc_before_save()
+ prev_doc = self.get_doc_before_save() or {}
cell_number = self.get('cell_number')
prev_number = prev_doc.get('cell_number')
if (cell_number != prev_number or