am 41ceb907: Merge change 22186 into eclair

Merge commit '41ceb907b5d13ee58759022ac8d830b04686baba'

* commit '41ceb907b5d13ee58759022ac8d830b04686baba':
  Allow null to be re-bound as a root script.  This was always legal from native and just a limitation of the java binding for the API.