$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2-sys.git /var/lib/mock/f40-build-2608331-63722/root/chroot_tmpdir/scmroot/rust-lv2-sys
Cloning into '/var/lib/mock/f40-build-2608331-63722/root/chroot_tmpdir/scmroot/rust-lv2-sys'...
$ git fetch origin 39dd6a10ae3c80e663537660c365986dfa8f9c1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2-sys
 * [new ref]         39dd6a10ae3c80e663537660c365986dfa8f9c1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 39dd6a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild