$ git clone -n https://src.fedoraproject.org/rpms/rust-actix-utils.git /var/lib/mock/f45-build-39972-765/root/chroot_tmpdir/scmroot/rust-actix-utils
Cloning into '/var/lib/mock/f45-build-39972-765/root/chroot_tmpdir/scmroot/rust-actix-utils'...
$ git fetch origin 6f1fe96e5c1a49cd6004b7771745ed2768efab1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-actix-utils
 * [new ref]         6f1fe96e5c1a49cd6004b7771745ed2768efab1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f1fe96 Regenerate with rust2rpm v28