$ git clone -n https://src.fedoraproject.org/rpms/python-yara.git /var/lib/mock/f40-build-2142813-50851/root/chroot_tmpdir/scmroot/python-yara
Cloning into '/var/lib/mock/f40-build-2142813-50851/root/chroot_tmpdir/scmroot/python-yara'...
$ git fetch origin 74b0957ee05b394542508ffa923142cfd8ca1774:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-yara
 * [new ref]         74b0957ee05b394542508ffa923142cfd8ca1774 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74b0957 Update to 4.4.0 - Closes rhbz#2239307