Bug#414105: Fails on $(apt-get source package/distribution)

[Adam Porter <adam@alphapapa.net>]

Package: apt
Version: 0.6.46.4-0.1
Severity: normal

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I wanted to backport Basket 1.0-1 from experimental to testing/unstable.  I ran $(apt-get -b source basket/experimental), but apt failed:

$ sudo apt-get -b source basket/experimental
Reading package lists... Done
Building dependency tree... Done
E: Unable to find a source package for basket/experimental

However, using $(apt-get -b -t experimental source basket) worked.  And of course, using $(apt-get install basket/experimental) works.  So why doesn't the 
package/distribution form work when using "source"?

- -- Package-specific info:

- -- apt-config dump --

APT "";
APT::Architecture "i386";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Periodic "";
APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "0";
APT::Periodic::AutocleanInterval "0";
APT::Cache-Limit "20000000";
Dir "/";
Dir::State "var/lib/apt/";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::userstatus "status.user";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt/";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt/";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::vendorlist "vendors.list";
Dir::Etc::vendorparts "vendors.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::dpkg "/usr/bin/dpkg";
DPkg "";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "if dpkg -s apt-listbugs | grep -q '^Status: .* ok installed'; then /usr/sbin/apt-listbugs apt || ( test $? -ne 10 || exit 10; echo 'Warning: apt-listbugs exited abnormally, hit enter key to continue.' 1>&2 ; read a < /dev/tty ); fi";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -ne 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "if [ -x /usr/bin/debsums ]; then /usr/bin/debsums --generate=nocheck -sp /var/cache/apt/archives; fi";
DPkg::Post-Invoke:: "if [ -x /usr/sbin/localepurge ] && [ $(ps w -p $PPID | grep -c remove) != 1 ]; then /usr/sbin/localepurge; else exit 0; fi";

- -- /etc/apt/preferences --

Package: *
Pin: release o=apt-build
Pin-Priority: 800

Package: *
Pin: release o=""
Pin-Priority: 990

Package: *
Pin: release a=testing
Pin-Priority: 900

Package: *
Pin: release a=unstable
Pin-Priority: 800

Package: *
Pin: release a=experimental
Pin-Priority: 1


- -- (/etc/apt/sources.list present, but not submitted) --


- -- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (900, 'testing'), (800, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-k7
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages apt depends on:
ii  debian-archive-keyring      2007.02.19   GnuPG archive keys of the Debian a
ii  libc6                       2.3.6.ds1-13 GNU C Library: Shared libraries
ii  libgcc1                     1:4.1.1-21   GCC support library
ii  libstdc++6                  4.1.1-21     The GNU Standard C++ Library v3

apt recommends no packages.

- -- no debconf information

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