legal-info manifest file contains duplicated packages

Dear group,

If you check at Buildroot autobuilder legal-info manifest file (e.g.
http://autobuild.buildroot.org/results/9e6/9e624f84404134623329bea03506e07822c1836d//licenses-manifest.csv)
you can see that some packages are duplicated (e.g. dbus) duplicates are mostly at the end of the list.

Here is a list of duplicated packages I have detected in my build:
dbus-glib
dbus
freetype
libcap
libtool
icu
libgtk2
gdk-pixbuf
libglib2
libpng
expat
libffi
libxml2
libxslt
ncurses
xapp_xcursorgen
xapp_xkbcomp
xcb-proto
xlib_libfontenc
xlib_libX11
xlib_libXcursor
xlib_libxkbfile
xproto_xproto
xlib_libXfont

Regards,
Aleksandar Zivkovic