Maven assembly plugin not producing jar-with-dependencies any more, why?

This is in my pom.xml:

<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
    <descriptorRefs>
          <descriptorRef>jar-with-dependencies</descriptorRef>
    </descriptorRefs>
    <archive>
        <manifest>
            <mainClass>tahrir.TrMain</mainClass>
        </manifest>
    </archive>
</configuration>
</plugin>

You can view the entire pom.xml here.

And this is the output when I run "mvn -DskipTests=true assembly:assembly".

Note that it seems to be building
tahrir/target/tahrir-0.0.1-SNAPSHOT.jar
but not
tahrir/target/tahrir-0.0.1-SNAPSHOT-jar-with-dependencies.jar.

Why isn't it building jar-with-dependencies given that this is the descriptionRef I've specified in the pom? This was working properly before and I don't know what might have changed to break it...?