$ git clone -n https://src.fedoraproject.org/rpms/rust-iai.git /var/lib/mock/f40-build-2641796-66435/root/chroot_tmpdir/scmroot/rust-iai
Cloning into '/var/lib/mock/f40-build-2641796-66435/root/chroot_tmpdir/scmroot/rust-iai'...
$ git fetch origin 6c6c62eff58faf0e779b27235dafddab2955afcd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-iai
 * [new ref]         6c6c62eff58faf0e779b27235dafddab2955afcd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c6c62e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild