$ git clone -n https://src.fedoraproject.org/rpms/rust-virtio-vsock.git /var/lib/mock/f45-build-46079-830/root/chroot_tmpdir/scmroot/rust-virtio-vsock
Cloning into '/var/lib/mock/f45-build-46079-830/root/chroot_tmpdir/scmroot/rust-virtio-vsock'...
$ git fetch origin d52219b724ef83c32b1da27448fde6af3e11842a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-virtio-vsock
 * [new ref]         d52219b724ef83c32b1da27448fde6af3e11842a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d52219b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild