$ git clone -n https://src.fedoraproject.org/rpms/rust-difftastic.git /var/lib/mock/f40-build-2340957-59737/root/chroot_tmpdir/scmroot/rust-difftastic
Cloning into '/var/lib/mock/f40-build-2340957-59737/root/chroot_tmpdir/scmroot/rust-difftastic'...
$ git fetch origin 5945e40f212ede5e940611aa3273934ea135e5fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-difftastic
 * [new ref]         5945e40f212ede5e940611aa3273934ea135e5fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5945e40 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild