kdenlive produce an invalid video on overwriting the input-file by the output-file

[Sasa Paporovic]

kdenlive is destructing videofiles by saving the output under the same name as the input.

A videofile was loaded, modified and rendered under the same name back to the filesystem. This produces a invalid video file.

Steps to reproduce:
1.Load a .vob video file.
2.Add a titel clip to the start of the video
3.Render it as .vob under the same name.
4.See that the new rendered file is destroid/Invalid.

Expected:

Kdenlive should be able to render back a file under the same name, after modifications, without destroing it.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: kdenlive 0.9.6-2ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Mon Feb 3 13:30:27 2014
ExecutablePath: /usr/bin/kdenlive
InstallationDate: Installed on 2013-05-03 (275 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: kdenlive
UpgradeStatus: Upgraded to saucy on 2013-10-05 (120 days ago)