package refuses to unlock

[snowcrash+smart]

i've installed

   % smart --version
      smart 0.50rc1

on opensuse 10.1.

i'm attempting to un-fubar a Thunderbird issue -- first by clearing
out all instances.

so, to start, i

   % smart query --installed --name=Thunderbird

      Loading cache...
      Updating cache...            ##################################### [100%]

      MozillaThunderbird-1.5-27 at i586
      MozillaThunderbird-1.5.0.7-0.1 at i586
      MozillaThunderbird-1.99.1-34.1 at i586
      MozillaThunderbird-debuginfo-1.5-27 at i586
      MozillaThunderbird-debuginfo-1.5.0.7-0.1 at i586
      MozillaThunderbird-debuginfo-1.99.1-34.1 at i586
      MozillaThunderbird-translations-1.5-27 at i586
      MozillaThunderbird-translations-1.5.0.7-0.1 at i586

then, for example here, using my overkill 'elephant gun' to remove any
locking problems,

   % smart flag --force --remove lock MozillaThunderbird
   % smart flag --force --remove lock MozillaThunderbird-debuginfo
   % smart flag --force --remove lock MozillaThunderbird-translations
   % smart flag --force --remove lock MozillaThunderbird-1.5-27 at i586
   % smart flag --force --remove lock MozillaThunderbird-1.5.0.7-0.1 at i586
   % smart flag --force --remove lock MozillaThunderbird-1.99.1-34.1 at i586
   % smart flag --force --remove lock MozillaThunderbird-debuginfo-1.5-27 at i586
   % smart flag --force --remove lock
MozillaThunderbird-debuginfo-1.5.0.7-0.1 at i586
   % smart flag --force --remove lock
MozillaThunderbird-debuginfo-1.99.1-34.1 at i586
   % smart flag --force --remove lock
MozillaThunderbird-translations-1.5-27 at i586
   % smart flag --force --remove lock
MozillaThunderbird-translations-1.5.0.7-0.1 at i586

but, on

   % smart remove '*Thunderbird*'

i still get an error,

      Loading cache...
      Updating cache...            ##################################### [100%]

      Computing transaction...
         error: Can't remove MozillaThunderbird-1.5.0.7-0.1 at i586: it's
locked

am i doing something wrong here? how do i unlock, then remove, this pkg?