$ git clone -n https://src.fedoraproject.org/rpms/rust-cookie.git /var/lib/mock/f40-build-2091819-50247/root/chroot_tmpdir/scmroot/rust-cookie
Cloning into '/var/lib/mock/f40-build-2091819-50247/root/chroot_tmpdir/scmroot/rust-cookie'...
$ git fetch origin e0f8d6d46cca3e795061cc322b8f2282be46a084:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cookie
 * [new ref]         e0f8d6d46cca3e795061cc322b8f2282be46a084 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0f8d6d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild