Comment 1 for bug 1339822

I apologize, my post is false. The adding of a new folder does not work as I thought. I found out that with most documents there is no problem, my mistake.

For example:

1. Make folder "test"
2. Place attached document into folder
3. Create new library
4. Documents -> Add Folder -> test
5. 1 file gets imported. Paste the following bibtex as the attribute of the file:

@article{Locatelli2014169,
title = "Differential evolution methods based on local searches ",
journal = "Computers & Operations Research ",
volume = "43",
number = "0",
pages = "169 - 180",
year = "2014",
note = "",
issn = "0305-0548",
doi = "http://dx.doi.org/10.1016/j.cor.2013.09.010",
url = "http://www.sciencedirect.com/science/article/pii/S0305054813002724",
author = "Marco Locatelli and Mirko Maischberger and Fabio Schoen",
keywords = "Global optimization",
keywords = "Population-based methods",
keywords = "Memetic algorithms",
keywords = "Disk and sphere packing "
}

6. Documents -> Add Folder -> test
7. Now the file is added 2 times.

I have no idea why is this so, but it is definitely not the problem that I described.