fix(Auto Attendance): incorrect previous shift computation for a time…

…stamp leading to incorrect absent marking

hrms/hr/doctype/shift_assignment/shift_assignment.py

@@ -459,7 +459,11 @@ def get_prev_or_next_shift(
 		for date_range in shift_dates:
 			# midnight shifts will span more than a day
 			start_date, end_date = date_range[0], add_days(date_range[1], 1)
-			reverse = next_shift_direction == "reverse"
+
+			if reverse := (next_shift_direction == "reverse"):
+				end_date = min(end_date, for_timestamp.date())
+			elif next_shift_direction == "forward":
+				start_date = max(start_date, for_timestamp.date())
 
 			for dt in generate_date_range(start_date, end_date, reverse=reverse):
 				shift_details = get_employee_shift(