$ git clone -n https://src.fedoraproject.org/rpms/rust-shellexpand.git /var/lib/mock/f45-build-44965-820/root/chroot_tmpdir/scmroot/rust-shellexpand
Cloning into '/var/lib/mock/f45-build-44965-820/root/chroot_tmpdir/scmroot/rust-shellexpand'...
$ git fetch origin 759dd7c245e547f914a3b49d17d1f4905705f4af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-shellexpand
 * [new ref]         759dd7c245e547f914a3b49d17d1f4905705f4af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 759dd7c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild