PATCH: ArrayIndexOutOfBoundsException thrown when cloning rows being fed into CSV input step

When trying to clone the rows coming out of a "Get files from result" step so that they can be fed into a "CSV input" step and a "text file output" step it throws a ArrayIndexOutOfBoundsException in the "Get files from result" step.

The section of the log showing the error:
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : Unexpected error :
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : java.lang.ArrayIndexOutOfBoundsException: 11
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : at org.pentaho.di.core.row.RowMeta.cloneRow(RowMeta.java:313)
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : at org.pentaho.di.trans.step.BaseStep.putRow(BaseStep.java:1092)
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : at org.pentaho.di.trans.steps.filesfromresult.FilesFromResult.processRow(FilesFromResult.java:63)
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : at org.pentaho.di.trans.step.BaseStep.runStepThread(BaseStep.java:2664)
2009/04/07 10:46:10 - Get files from result.0 - ERROR (version 3.1.0, build 826 from 2008/09/30 12:32:36) : at org.pentaho.di.trans.steps.filesfromresult.FilesFromResult.run(FilesFromResult.java:99)
2009/04/07 10:46:10 - Get files from result.0 - Finished processing (I=0, O=0, R=1, W=0, U=0, E=1)

I'll attach a simple example shortly that trips this error.