am: 1f67c8740c
* commit '1f67c8740cf9d3e2852b9685500271779d5e09cb':
Fix crash in isChildDocument when parent is in zip, and child not.
am: 1f67c8740c
* commit '1f67c8740cf9d3e2852b9685500271779d5e09cb':
Fix crash in isChildDocument when parent is in zip, and child not.