$ git clone -n https://src.fedoraproject.org/rpms/krdp.git /var/lib/mock/f41-build-860487-168948/root/chroot_tmpdir/scmroot/krdp
Cloning into '/var/lib/mock/f41-build-860487-168948/root/chroot_tmpdir/scmroot/krdp'...
$ git fetch origin 783c50657b2ab44e394f4b3f026d76fba24a3337:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krdp
 * [new ref]         783c50657b2ab44e394f4b3f026d76fba24a3337 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 783c506 6.2.2