Current Behavior

Non-existing properties and sessionKeys are quite consistently handled as empty/null value in FF. Can't think of any situation where I would like an error when the sessionKey doesn't exist instead of just handling it as empty/null. Don't think there is even a way to check wether a sessionKey exists or not with a pipe beforehand?

Error: "getInputFromSessionKey [resolveRelationships] is not present in session".

Expected Behavior

IfPipe should consider non-existing sessionKey in 'getInputFromSessionKey' as empty/null instead of throwing an error.

Environment Information

FF! 9.4.0-20251213.042333: CRM-API 1.0.2
Running on dfc71a94a161 using Apache Tomcat/11.0.15
Java Version: OpenJDK Runtime Environment (21.0.9+10-LTS)
Heap size: 208.3 MiB, total JVM memory: 448.0 MiB
Free memory: 239.7 MiB, max memory: 3.8 GiB
Free disk space: 964.0 GiB, total disk space: 1006.9 GiB
Up since: 2025-12-15 13:55:57, timezone: Etc/UTC

Steps To Reproduce

No response

Configuration

<IfPipe
                name="ResolveRelationships_Condition"
                getInputFromSessionKey="resolveRelationships"
                expressionValue="true">
                <Forward name="then" path="Handler_Stages_get-Sender" />
                <Forward name="else" path="Map_Stage-Sender" />
            </IfPipe>

Input

No response

What database are you using?

No response

What browsers are you seeing the problem on?

No response

Relevant Log Output

Anything else?

No response