Transmission creates the `incomplete-dir` and it was driving me nuts

For a while I've been experiencing the seemingly spontaneous creation of the `~/Downloads` directory.

Now I've discovered that it was Transmission that created this directory because it was the `incomplete-dir` configuration directive.

Changing this configuration directive to a different directory, for example, `~/dl`, works around the issue.

The bug is that Transmission creates this directory despite the fact that `"incomplete-dir-enabled": false`.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: transmission (not installed)
ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
Uname: Linux 3.13.0-18-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Mar 20 16:45:30 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2010-10-12 (1255 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
SourcePackage: transmission
UpgradeStatus: Upgraded to trusty on 2013-10-26 (145 days ago)