$ git clone -n https://src.fedoraproject.org/rpms/python-libsass.git /var/lib/mock/f39-build-1590709-38258/root/chroot_tmpdir/scmroot/python-libsass
Cloning into '/var/lib/mock/f39-build-1590709-38258/root/chroot_tmpdir/scmroot/python-libsass'...
$ git fetch origin d9591c6f3cab167a13056ecf66f308f35d9f75b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-libsass
 * [new ref]         d9591c6f3cab167a13056ecf66f308f35d9f75b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9591c6 Update to 0.22.0 (close RHBZ#1873395)