$ git clone -n https://src.fedoraproject.org/rpms/R-gtable.git /var/lib/mock/f41-build-side-1-2630782-25616/root/chroot_tmpdir/scmroot/R-gtable
Cloning into '/var/lib/mock/f41-build-side-1-2630782-25616/root/chroot_tmpdir/scmroot/R-gtable'...
$ git fetch origin 380157f96ca4c824c30d879fce12182dde009fa9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gtable
 * [new ref]         380157f96ca4c824c30d879fce12182dde009fa9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 380157f convert GPLv2 license to SPDX