**System Information**
Win 7 64bit, i5, 8gb, gtx 960
**Blender Version**
Broken: (example: 2.75a)
Worked: -
**Short description of error**
Unable to make backup file B when file A have open append tap of file B
**Exact steps for others to reproduce the error**
Open both files. Open append tap in File A of File B. Try to save File B.
{F228454}