$ git clone -n https://src.fedoraproject.org/rpms/rust-oneshot.git /var/lib/mock/f45-build-43507-803/root/chroot_tmpdir/scmroot/rust-oneshot
Cloning into '/var/lib/mock/f45-build-43507-803/root/chroot_tmpdir/scmroot/rust-oneshot'...
$ git fetch origin dad4697fd525eea515deda2f63f74eb4f72ad7c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-oneshot
 * [new ref]         dad4697fd525eea515deda2f63f74eb4f72ad7c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dad4697 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild