[2.0 blocker] 'Package Relationships' list: right-clicking first package closes adept

I can also see this problem:
In the console, the error is
terminate called after throwing an instance of 'std::bad_cast'
  what(): St8bad_cast

Here's a backtrace:

Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1232849216 (LWP 7273)]
[KCrash handler]
#6 0xffffe410 in __kernel_vsyscall ()
#7 0xb76309a1 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0xb76322b9 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0xb780fc84 in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/libstdc++.so.6
#10 0xb780d915 in __gxx_personality_v0 () from /usr/lib/libstdc++.so.6
#11 0xb780d94a in std::terminate () from /usr/lib/libstdc++.so.6
#12 0xb780da7e in __cxa_throw () from /usr/lib/libstdc++.so.6
#13 0x0809882e in aptFront::utils::MultiTypeImpl<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer>, aptFront::cache::entity::Base, 0>::initFromBase (this=0xbfb0cb18, i=0x9031b98) at multitype.h:79
#14 0x080e791f in PackageT (this=0xbfb0cb18, i=@0xbfb0cabc) at package.h:116
#15 0x080fb54b in aptFront::utils::CastedRange<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer>, aptFront::cache::entity::Entity>::current (this=0x9031b88) at range.h:231
#16 0x080fa3a8 in aptFront::utils::Range<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer> >::operator* (this=0xbfb0cb6c)
    at range.h:140
#17 0x080fd0db in aptFront::actor::Implementation<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer>, aptFront::actor::FromMember<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer> >, aptFront::actor::FromMemberUnconditional<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer> > >::possibleOnRange (
    this=0x90313a8, r=@0xbfb0cb6c) at actor.h:72
#18 0x080e9fa2 in aptFront::actor::Base<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer> >::possible (this=0x90313a8,
    r=@0xbfb0cbac) at actor.h:54
#19 0x080ea017 in aptFront::actor::Actor<aptFront::cache::entity::PackageT<aptFront::cache::component::PackagesPointer> >::possible (this=0xbfb0cc3c,
    r=@0xbfb0cc28) at actor.h:119
#20 0x080e309f in ept::Lister::contextMenu (this=0x855d950, it=0x85a9600,
    pt=@0xbfb0ce1c)
    at /home/gary/sources/ept-1.91ubuntu3/./ept/libept/lister.cpp:425
#21 0x081284c6 in ept::Lister::qt_invoke (this=0x855d950, _id=127,
    _o=0xbfb0cd20) at lister.moc.cpp:208
#22 0xb6efde29 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#23 0xb72a80a8 in QListView::contextMenuRequested ()
   from /usr/lib/libqt-mt.so.3
#24 0xb6ff739b in QListView::contentsContextMenuEvent ()
   from /usr/lib/libqt-mt.so.3
#25 0xb7032a9c in QScrollView::viewportContextMenuEvent ()
   from /usr/lib/libqt-mt.so.3
#26 0xb7035181 in QScrollView::eventFilter () from /usr/lib/libqt-mt.so.3
#27 0xb6ff95f9 in QListView::eventFilter () from /usr/lib/libqt-mt.so.3
#28 0xb6efaf72 in QObject::activate_filters () from /usr/lib/libqt-mt.so.3
#29 0xb6efaff0 in QObject::event () from /usr/lib/libqt-mt.so.3
#30 0xb6f3851a in QWidget::event () from /usr/lib/libqt-mt.so.3
#31 0xb6e93dc6 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#32 ...

ACK, i can reproduce and i know why it happens, Just need to fix. Not completely sure how yet, but i will think of something :).

Fixed in svn.