$ git clone -n https://src.fedoraproject.org/rpms/rust-scc.git /var/lib/mock/f45-build-44691-816/root/chroot_tmpdir/scmroot/rust-scc
Cloning into '/var/lib/mock/f45-build-44691-816/root/chroot_tmpdir/scmroot/rust-scc'...
$ git fetch origin c8320067024a088b843346490c98af3e75a77cff:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-scc
 * [new ref]         c8320067024a088b843346490c98af3e75a77cff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c832006 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild