$ git clone -n https://src.fedoraproject.org/rpms/rust-bitreader.git /var/lib/mock/f40-build-2639867-66383/root/chroot_tmpdir/scmroot/rust-bitreader
Cloning into '/var/lib/mock/f40-build-2639867-66383/root/chroot_tmpdir/scmroot/rust-bitreader'...
$ git fetch origin 8d2d19f573a220def94adff8d9cb43796116d386:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bitreader
 * [new ref]         8d2d19f573a220def94adff8d9cb43796116d386 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d2d19f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild