$ git clone -n https://src.fedoraproject.org/rpms/rust-clap.git /var/lib/mock/f40-build-2270701-54845/root/chroot_tmpdir/scmroot/rust-clap
Cloning into '/var/lib/mock/f40-build-2270701-54845/root/chroot_tmpdir/scmroot/rust-clap'...
$ git fetch origin 6d3747fb237763fb93056388e50034522c0e9498:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-clap
 * [new ref]         6d3747fb237763fb93056388e50034522c0e9498 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d3747f Update to version 4.4.16; Fixes RHBZ#2257294