$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-xmod.git /var/lib/mock/f38-build-side-42-init-devel-904203-28620/root/chroot_tmpdir/scmroot/gap-pkg-xmod
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-904203-28620/root/chroot_tmpdir/scmroot/gap-pkg-xmod'...
$ git fetch origin 30f0c0e39063a1e2d37d4a1b8efcb1120b3b813b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-xmod
 * [new ref]         30f0c0e39063a1e2d37d4a1b8efcb1120b3b813b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 30f0c0e Version 2.91.  Add -double-doc patch to fix LaTeX errors.