$ git clone -n https://src.fedoraproject.org/rpms/rust-cipher0.4.git /var/lib/mock/f45-build-40794-776/root/chroot_tmpdir/scmroot/rust-cipher0.4
Cloning into '/var/lib/mock/f45-build-40794-776/root/chroot_tmpdir/scmroot/rust-cipher0.4'...
$ git fetch origin c025ae99d50e35fc784d1bea8b27e31588012ffa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cipher0.4
 * [new ref]         c025ae99d50e35fc784d1bea8b27e31588012ffa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c025ae9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild