The 2.4 Release Breaks Previously-Working Builds

We have an archetype contained within our project. Today, when I tried to run our build, I got the following error:

[INFO] [plugin:descriptor]
[INFO] Using 2 extractors.
[INFO] Applying extractor for language: java
[INFO] Extractor for language: java found 0 mojo descriptors.
[INFO] Applying extractor for language: bsh
[INFO] Extractor for language: bsh found 0 mojo descriptors.
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error extracting plugin descriptor: 'No mojo descriptors found in plugin.'

However, if I add this to my pom.xml file for that module:

<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-plugin-plugin</artifactId>
<version>2.3</version>
</plugin>
</plugins>
</pluginManagement>

the build works just fine, as usual (understandable since the 2.4 release came out yesterday).