update-software-center-agent crashed with OSError in makedirs(): [Errno 17] File exists: '/tmp/guest-5v58U8/.cache/software-center/software-center-agent.db.tmp'

This bug was fixed in the package software-center - 5.1.13

---------------
software-center (5.1.13) precise; urgency=low

  [ Anthony Lenton ]
  * lp:~elachuni/software-center/pep8-test-part5,
    lp:~elachuni/software-center/pep8-test-part6,
    lp:~elachuni/software-center/pep8-test-part7,
    lp:~elachuni/software-center/pep8-test-part8,
    lp:~elachuni/software-center/pep8-test-part9,
    lp:~elachuni/software-center/pep8-test-part10,
    lp:~elachuni/software-center/pep8-test-part11,
    lp:~elachuni/software-center/pep8-test-part12,
    lp:~elachuni/software-center/pep8-test-part13,
    lp:~elachuni/software-center/pep8-test-part14,
    lp:~elachuni/software-center/pep8-test-part15,
    lp:~elachuni/software-center/pep8-test-part16,
    lp:~elachuni/software-center/pep8-test-part17,
    lp:~elachuni/software-center/pep8-test-part18,
    lp:~elachuni/software-center/pep8-test-part19,
    lp:~elachuni/software-center/pep8-test-part20,
    lp:~elachuni/software-center/pep8-test-part21,
    lp:~elachuni/software-center/pep8-test-part22:
    - many, many, many pep8 fixes
  * lp:~elachuni/software-center/unify-ussoc-envvar:
    - fix USSOC_SERVICE_URL env variable

  [ Gabor Kelemen ]
  * lp:~kelemeng/software-center/bug953812: (LP: #953812)
    - Translate review sorting criteria
    - Fix the Recommendation spinner text translations

  [ Michael Vogt ]
  * lp:~mvo/software-center/small-sso-fixes:
    - fix the clear_credentials() call if a token is no
      longer valid
  * lp:~mvo/software-center/lp955005:
    - don't display ratings for the case where an app
      cannot be found (LP: #955005)
  * lp:~mvo/software-center/opengl-driver-blacklist:
    - add support for video driver blacklisting
  * lp:~mvo/software-center/lp856559:
    - fix case where the search term is not always
      cleared in the search entry (LP: #856559)
  * lp:~mvo/software-center/misc-fixes:
    - when a package can not be authenticated, do not fail
      (hard) but instead offer to "repair" the situation using
      a "reload" and try the install again (LP: #876278)
    - do not crash in if os.makedirs has a race condition
      (LP: #956680)
    - fix the proxy handling with 12.04 as the "enabled" property
      is deprecated now. it will also not mess with the proxy
      environment on non-gnome systems (LP: #742564)
  * lp:~mvo/software-center/lp780812:
    - ensure that the distroseries is updated in the sources
      deb line when updating a purchased item (LP: #780812)
  * lp:~mvo/software-center/recommendations-opt-out:
    - fix double-results when opting-in and back out of of
      the recommendations service repeatedly
  * lp:~mvo/software-center/tos-dialog:
    - display a terms-of-service dialog before the first purchase
  * lp:~mvo/software-center/lp957599:
    - add a new unit test test_spawn_helper.py
  * lp:~mvo/software-center/track-db-open:
    - improve db logging

  [ Gary Lasker ]
  * lp:~gary-lasker/software-center/fix-lp955048:
    - String fix for the "Recommended For You" panel. LP: #955048
  * lp:~gary-lasker/software-center/fix-lp856559:
    - Clears the search entry field before doing a reinstall
      previous purchases (LP: #85655...