$ git clone -n https://src.fedoraproject.org/rpms/rust-bytelines.git /var/lib/mock/f40-build-2659438-66918/root/chroot_tmpdir/scmroot/rust-bytelines
Cloning into '/var/lib/mock/f40-build-2659438-66918/root/chroot_tmpdir/scmroot/rust-bytelines'...
$ git fetch origin 9f75549c169cfcc6b8f989017af5e74d3d99f2f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-bytelines
 * [new ref]         9f75549c169cfcc6b8f989017af5e74d3d99f2f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9f75549 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild