$ git clone -n https://src.fedoraproject.org/rpms/gettext.git /var/lib/mock/f45-build-9818-409/root/chroot_tmpdir/scmroot/gettext
Cloning into '/var/lib/mock/f45-build-9818-409/root/chroot_tmpdir/scmroot/gettext'...
$ git fetch origin 5be83e9c1d63daaa2d37a30330335419736e6833:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gettext
 * [new ref]         5be83e9c1d63daaa2d37a30330335419736e6833 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5be83e9 Rebuilt for libxml-2.5.4