[Checkins] [zopefoundation/mongopersist] 4a226a: Make sure we are not assigning None as the jar.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/mongopersist
  Commit: 4a226abe5ebc184b186e9a7b122a21483bfc09bc
      https://github.com/zopefoundation/mongopersist/commit/4a226abe5ebc184b186e9a7b122a21483bfc09bc
  Author: Stephan Richter <stephan.richter at gmail.com>
  Date:   2013-10-09 (Wed, 09 Oct 2013)

  Changed paths:
    M src/mongopersist/serialize.py

  Log Message:
  -----------
  Make sure we are not assigning None as the jar.

If the parent is not yet added to a jar, then the sub-object is safe too,
since the first time the parent is stored, the sub-obejct will receive the jar.