project files/assets not saved when based on existing project

[PowerRanger]

Ubuntu Lucid 10.4 32 bit
Build Wizard
OpenShot 1.1.3

1. create new project
2. add project assets- like title
3. save project
4. add more assets - another title
5. select File | Save Project As
6. create new folder, rename and attempt to save project
7. project created, but assets( references/thumbnails) are not. Project files have a '?' question mark for an icon, and the preview window shows text 'Invalid". The Project folder is created and within it a thumbnail folder is created, but it is empty.

[Lars (lars-taeuber)]

This bug ist still present in 1.3.0.

The preexisting files are correctly dereferenced but the created files (titles + thumbnails) cannot be dereferrenced any more.