$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_hc0.1.git /var/lib/mock/f38-build-side-43-rust-devel-1411128-31428/root/chroot_tmpdir/scmroot/rust-rand_hc0.1
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411128-31428/root/chroot_tmpdir/scmroot/rust-rand_hc0.1'...
$ git fetch origin c79c9eda0df94b6ff09f3755b985765b94198484:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_hc0.1
 * [new ref]         c79c9eda0df94b6ff09f3755b985765b94198484 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c79c9ed Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild