$ git clone -n https://src.fedoraproject.org/rpms/dnsmasq.git /var/lib/mock/f40-build-794739-139784/root/chroot_tmpdir/scmroot/dnsmasq
Cloning into '/var/lib/mock/f40-build-794739-139784/root/chroot_tmpdir/scmroot/dnsmasq'...
$ git fetch origin 4bfb2c1c32ffba62eb4f63a2f018568d325e0383:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsmasq
 * [new ref]         4bfb2c1c32ffba62eb4f63a2f018568d325e0383 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4bfb2c1 fixup! Update to 2.90 (#2264049)