$ git clone -n https://src.fedoraproject.org/rpms/rust-prost0.8.git /var/lib/mock/f40-build-2533144-61847/root/chroot_tmpdir/scmroot/rust-prost0.8
Cloning into '/var/lib/mock/f40-build-2533144-61847/root/chroot_tmpdir/scmroot/rust-prost0.8'...
$ git fetch origin a7a245bb67e5993b4539ca23e95dbb1318c72864:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-prost0.8
 * [new ref]         a7a245bb67e5993b4539ca23e95dbb1318c72864 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7a245b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild