yum-3.0.6-1.fc6 barfs when resolving deps if some of the packages satisfying
dependencies do not contain SHA1HEADER.

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Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 94, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 381, in doCommands
    return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd,
self.extcmds)
  File "/usr/share/yum-cli/yumcommands.py", line 134, in doCommand
    return base.installPkgs(extcmds)
  File "/usr/share/yum-cli/cli.py", line 561, in installPkgs
    my_inst_pkgs = self.returnInstalledPackagesByDep(arg)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 1595, in
returnInstalledPackagesByDep
    pkglist = self.rpmdb.whatProvides(depname, depflags, depver)
  File "/usr/lib/python2.4/site-packages/yum/rpmsack.py", line 390, in whatProvides
    pkgs = self.searchProvides(name)
  File "/usr/lib/python2.4/site-packages/yum/rpmsack.py", line 141, in
searchProvides
    return self.searchPrco(name, 'provides')
  File "/usr/lib/python2.4/site-packages/yum/rpmsack.py", line 123, in searchPrco
    if not result.has_key(po.pkgid):
TypeError: list objects are unhashable
-----

Examples of such rpms:
- jdk-1_5_0_11-linux-amd64.rpm
  (from http://java.sun.com/javase/downloads/index_jdk5.jsp)
- opera-9.20-20070409.6-shared-qt.i386-en.rpm
  (from http://www.opera.com/download/)

yum 3.1.x untested, but appears to already have a fix - attached is a backport
of it which does fix it for me with 3.0.6.