$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Virt.git /var/lib/mock/f40-build-2212909-52298/root/chroot_tmpdir/scmroot/perl-Sys-Virt
Cloning into '/var/lib/mock/f40-build-2212909-52298/root/chroot_tmpdir/scmroot/perl-Sys-Virt'...
$ git fetch origin 0f82171272886b1ab8b775dbebf2575012363a2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-Virt
 * [new ref]         0f82171272886b1ab8b775dbebf2575012363a2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f82171 9.8.0 bump (rhbz#2249795)