$ git clone -n https://src.fedoraproject.org/rpms/sipsak.git /var/lib/mock/f40-build-2206252-52044/root/chroot_tmpdir/scmroot/sipsak
Cloning into '/var/lib/mock/f40-build-2206252-52044/root/chroot_tmpdir/scmroot/sipsak'...
$ git fetch origin d9742315bc039eba10daf723d0fb182a5b8181b9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sipsak
 * [new ref]         d9742315bc039eba10daf723d0fb182a5b8181b9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d974231 Switch to SPDX tag