Error on using switch statement "Value is required for case"

[Celebrate-Reinhard]

Describe the bug
After updating to phing/phing from 2.17.4 to 3.0.1, the switch statement throws an error.

Steps To Reproduce

<switch value="${WorkerNumber}">
    <case value="0">
        <echo message="The value of property WorkerNumber is 0" />
    </case>
    <case value="1">
        <echo message="The value of property WorkerNumber is 1" />
    </case>
    <default>
        <echo message="The value of property WorkerNumber is not sensible" />
    </default>
</switch>

There are no other changes to xml file. I am calling it as before like this:

vendor/bin/phing -f /foo/build-prod.xml run-foo -DWorkerNumber=1

Expected behavior
Echo statement of case 1 is visible.

Screenshots / terminal output
build-prod.xml:12:40 Value is required for case

Additional context
update of phing/phing from 2.17.4 to 3.0.1

[mrook]

Fixed in 7c7a75c.