Fixing problem with mojo configuration merges between parameter configuration keyed by alias and by name within the POM, along with configuration within the MojoDescriptor. Also adding an IT that will indirectly test that default parameter values are not being disturbed during the merge process.
maven/components/trunk/maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java
maven/components/trunk/maven-core-it/it0048/