$ git clone -n https://src.fedoraproject.org/rpms/rust-bitreader.git /var/lib/mock/f45-build-40467-772/root/chroot_tmpdir/scmroot/rust-bitreader
Cloning into '/var/lib/mock/f45-build-40467-772/root/chroot_tmpdir/scmroot/rust-bitreader'...
$ git fetch origin d2afd8f80611bd5e8568fdc5521b9ceba69b1bb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bitreader
 * [new ref]         d2afd8f80611bd5e8568fdc5521b9ceba69b1bb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d2afd8f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild