$ git clone -n https://src.fedoraproject.org/rpms/rust-jxl-bitstream.git /var/lib/mock/f40-build-2681510-67958/root/chroot_tmpdir/scmroot/rust-jxl-bitstream
Cloning into '/var/lib/mock/f40-build-2681510-67958/root/chroot_tmpdir/scmroot/rust-jxl-bitstream'...
$ git fetch origin 53acc475f1d0c539499ecc83e8da36d2fbce133c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-jxl-bitstream
 * [new ref]         53acc475f1d0c539499ecc83e8da36d2fbce133c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53acc47 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild