$ git clone -n https://src.fedoraproject.org/rpms/rust-simdutf8.git /var/lib/mock/f40-build-2716662-72669/root/chroot_tmpdir/scmroot/rust-simdutf8
Cloning into '/var/lib/mock/f40-build-2716662-72669/root/chroot_tmpdir/scmroot/rust-simdutf8'...
$ git fetch origin 4259bb2a8027a0bd5239472b6cd983006a13080a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-simdutf8
 * [new ref]         4259bb2a8027a0bd5239472b6cd983006a13080a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4259bb2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild