$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-Virt.git /var/lib/mock/f38-build-side-42-init-devel-572697-25924/root/chroot_tmpdir/scmroot/perl-Sys-Virt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-572697-25924/root/chroot_tmpdir/scmroot/perl-Sys-Virt'...
$ git fetch origin 2c9cdf88b1a36670926573a3e6a147b4381aeade:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-Virt
 * [new ref]         2c9cdf88b1a36670926573a3e6a147b4381aeade -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c9cdf8 9.0.0 bump