Adding files to project corrupts other projects filelist

[ejoerns]

When I try to add a file to a project (multiply projects opened) the file is added correctly but the others project file tree (only 'images' and 'projectfile' as i can see so far) shows doulbed entries that actually belong to the first project.
If I add another file, the list is doubled again.
The result can be seen in the attached image. There i added the files 'glossary.tex' and 'preamble.tex' to the project 'BA thesis'. The 'image' list of 'tubsdocguide' shows lots of multiple-existent files that are originate from 'BA thesis'.
After closing and reopening both projects, everything is fine and added correctly.

$ apt-cache show kile
Package: kile
Priority: optional
Section: tex
Installed-Size: 10940
Maintainer: Ubuntu MOTU Developers <email address hidden>
Architecture: i386
Version: 1:2.1.0-0ubuntu1~ppa1~lucid1
Recommends: asymptote, context, dblatex, dvipdfmx, dvipng, ghostscript, imagemagick, kbibtex | pybliographer | gbib | jabref, konqueror | firefox, latex2html, lilypond, okular | evince | gv, psutils, tex4ht, texlive-metapost, texlive-xetex, zip
Replaces: ktexmaker2 (<< 1.8)
Suggests: kile-doc, texlive-doc-base, aspell | ispell | hspell
Depends: kdebase-runtime (>= 4:4.4.5), kdelibs5 (>= 4:4.4.5), libc6 (>= 2.4), libgcc1 (>= 1:4.1.1), libqt4-dbus (>= 4:4.5.3), libqt4-network (>= 4:4.5.3), libqt4-script (>= 4:4.5.3), libqt4-svg (>= 4:4.5.3), libqt4-xml (>= 4:4.5.3), libqtcore4 (>= 4:4.6.1), libqtgui4 (>= 4:4.5.3), libstdc++6 (>= 4.1.1), konsole, texlive-base-bin, texlive-latex-base
Conflicts: ktexmaker2 (<< 1.8)
Filename: pool/main/k/kile/kile_2.1.0-0ubuntu1~ppa1~lucid1_i386.deb
Size: 1512328
MD5sum: 7602add3b69826453ceadfb2bfb031f2
SHA1: c613c2327f3b7441380412586493bdb2b00ca24b