$ git clone -n https://src.fedoraproject.org/rpms/gr-osmosdr.git /var/lib/mock/f41-build-842781-161707/root/chroot_tmpdir/scmroot/gr-osmosdr
Cloning into '/var/lib/mock/f41-build-842781-161707/root/chroot_tmpdir/scmroot/gr-osmosdr'...
$ git fetch origin 3822ef03e5ea4ecc7869af48e91ea1967e771a3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gr-osmosdr
 * [new ref]         3822ef03e5ea4ecc7869af48e91ea1967e771a3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3822ef0 Rebuilt for new gnuradio