$ git clone -n https://src.fedoraproject.org/rpms/rust-clap.git /var/lib/mock/f40-build-2091793-50244/root/chroot_tmpdir/scmroot/rust-clap
Cloning into '/var/lib/mock/f40-build-2091793-50244/root/chroot_tmpdir/scmroot/rust-clap'...
$ git fetch origin ec05a0a916b50e29e842f4fcad7d2f196a8ac52a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-clap
 * [new ref]         ec05a0a916b50e29e842f4fcad7d2f196a8ac52a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec05a0a Update to version 4.4.11; Fixes RHBZ#2252803