Since the value of operand2 is not enclosed in double quotes (should have been "\"test"\"), it is considered as a uve attribute and hence evaluated to null. Since operand1 is also "null", the condition matches and hence the alarm is not cleared.
Since the value of operand2 is not enclosed in double quotes (should have been "\"test"\"), it is considered as a uve attribute and hence evaluated to null. Since operand1 is also "null", the condition matches and hence the alarm is not cleared.