$ git clone -n https://src.fedoraproject.org/rpms/rust-serde_norway.git /var/lib/mock/f45-build-44847-818/root/chroot_tmpdir/scmroot/rust-serde_norway
Cloning into '/var/lib/mock/f45-build-44847-818/root/chroot_tmpdir/scmroot/rust-serde_norway'...
$ git fetch origin 4df0d68b67969c819df4e2b0b76afe8f098433f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serde_norway
 * [new ref]         4df0d68b67969c819df4e2b0b76afe8f098433f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4df0d68 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild