$ git clone -n https://src.fedoraproject.org/rpms/tcpcrypt.git /var/lib/mock/f41-build-side-1-2670550-29059/root/chroot_tmpdir/scmroot/tcpcrypt
Cloning into '/var/lib/mock/f41-build-side-1-2670550-29059/root/chroot_tmpdir/scmroot/tcpcrypt'...
$ git fetch origin 8be4d9a4112f91973dec1868bdbc5ec4ec8ddb5b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tcpcrypt
 * [new ref]         8be4d9a4112f91973dec1868bdbc5ec4ec8ddb5b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8be4d9a convert license to SPDX