$ git clone -n https://src.fedoraproject.org/rpms/rust-lexopt.git /var/lib/mock/f40-build-2082625-49855/root/chroot_tmpdir/scmroot/rust-lexopt
Cloning into '/var/lib/mock/f40-build-2082625-49855/root/chroot_tmpdir/scmroot/rust-lexopt'...
$ git fetch origin 7a332e3a3bd23a4bcef4632bb887821298800b88:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lexopt
 * [new ref]         7a332e3a3bd23a4bcef4632bb887821298800b88 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a332e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild