$ git clone -n https://src.fedoraproject.org/rpms/sad.git /var/lib/mock/f41-build-846649-163162/root/chroot_tmpdir/scmroot/sad
Cloning into '/var/lib/mock/f41-build-846649-163162/root/chroot_tmpdir/scmroot/sad'...
$ git fetch origin a74c4f7263e428b76bd20a6261f4d122d8c858fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sad
 * [new ref]         a74c4f7263e428b76bd20a6261f4d122d8c858fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a74c4f7 Update to 0.4.31