$ git clone -n git://pkgs.fedoraproject.org/rpms/mcelog /var/lib/mock/f29-build-3273-884/root/thebuilddir/tmp/scmroot/mcelog
Cloning into '/var/lib/mock/f29-build-3273-884/root/thebuilddir/tmp/scmroot/mcelog'...
$ git reset --hard 98dd182132fd052b22e6e9c402f6fdebdb09b5be
HEAD is now at 98dd182 mcelog: Remove README & CHANGES from spec file