$ git clone -n https://src.fedoraproject.org/rpms/rust-genetlink.git /var/lib/mock/f38-build-side-43-rust-devel-1397436-31052/root/chroot_tmpdir/scmroot/rust-genetlink
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1397436-31052/root/chroot_tmpdir/scmroot/rust-genetlink'...
$ git fetch origin a9001f61c5b1bd61dcc3293b5bfa46ebffcb494a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-genetlink
 * [new ref]         a9001f61c5b1bd61dcc3293b5bfa46ebffcb494a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9001f6 Upgrade to 0.2.5