$ git clone -n https://src.fedoraproject.org/rpms/adobe-source-han-serif-tw-fonts.git /var/lib/mock/f40-build-2194971-51502/root/chroot_tmpdir/scmroot/adobe-source-han-serif-tw-fonts
Cloning into '/var/lib/mock/f40-build-2194971-51502/root/chroot_tmpdir/scmroot/adobe-source-han-serif-tw-fonts'...
$ git fetch origin f578722494f1657129bebd23769f876551336e2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/adobe-source-han-serif-tw-fonts
 * [new ref]         f578722494f1657129bebd23769f876551336e2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f578722 Update to 2.002