$ git clone -n https://src.fedoraproject.org/rpms/rust-wycheproof.git /var/lib/mock/f45-build-46247-832/root/chroot_tmpdir/scmroot/rust-wycheproof
Cloning into '/var/lib/mock/f45-build-46247-832/root/chroot_tmpdir/scmroot/rust-wycheproof'...
$ git fetch origin 75bd1f5d7cf347695045d17c50d95220bfdd50db:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wycheproof
 * [new ref]         75bd1f5d7cf347695045d17c50d95220bfdd50db -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75bd1f5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild