$ git clone -n https://src.fedoraproject.org/rpms/blosc2.git /var/lib/mock/f38-build-side-42-init-devel-1245034-30640/root/chroot_tmpdir/scmroot/blosc2
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1245034-30640/root/chroot_tmpdir/scmroot/blosc2'...
$ git fetch origin fc4a3aa1d7a35c7e5f8b345b72ec043d8f0b454f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blosc2
 * [new ref]         fc4a3aa1d7a35c7e5f8b345b72ec043d8f0b454f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc4a3aa Ignore test results on s390x