site reporting causes release:perform to fail

It seems that if mxing aggregates and non-aggregates of the same report that it causes release:perform to fail! This definitely happens with javadoc .
Either removing the aggregate or non-aggregate version seems to not cause a release:perform failure.

The specific command lines I am using:
mvn -B -Dresume=false -Dmaven.test.skip release:prepare
mvn -B -Dmaven.test.skip release:perform

I can also get this error when doing mvn site:site if I have not done a mvn install since the version was updated.