Default fault rule is executed even when another policy raised a fault. How to stop this?

[#1]

Default fault rule worked in the case where no fault was able to catch the exception. But it is also executing when another fault is raised. Even when <AlwaysEnforce> is false.

Attached is the screenshot of the trace. Below is how I am applying the default rule

<TargetEndpoint name="something">
    <Description/>
    <FaultRules/>
    <DefaultFaultRule name="fault-rule">
        <Step>
            <Name>ReturnGenericError</Name>
        </Step> 
        <AlwaysEnforce>false</AlwaysEnforce> 
    </DefaultFaultRule>
    <Flows/>

	...

How to stop this?