$ git clone -n https://src.fedoraproject.org/rpms/rust-thousands.git /var/lib/mock/f45-build-45460-823/root/chroot_tmpdir/scmroot/rust-thousands
Cloning into '/var/lib/mock/f45-build-45460-823/root/chroot_tmpdir/scmroot/rust-thousands'...
$ git fetch origin 7f521ebf4a37f20fe3ee0c9c1ab82340ea41a9c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-thousands
 * [new ref]         7f521ebf4a37f20fe3ee0c9c1ab82340ea41a9c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f521eb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild