$ git clone -n https://src.fedoraproject.org/rpms/opensubdiv.git /var/lib/mock/f40-build-2617970-64472/root/chroot_tmpdir/scmroot/opensubdiv
Cloning into '/var/lib/mock/f40-build-2617970-64472/root/chroot_tmpdir/scmroot/opensubdiv'...
$ git fetch origin 49dca200387e81e886776fcdae2210e3de607f89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/opensubdiv
 * [new ref]         49dca200387e81e886776fcdae2210e3de607f89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49dca20 Drop the -doc subpackage due to Doxygen guidelines issues