$ git clone -n https://src.fedoraproject.org/rpms/blosc2.git /var/lib/mock/f41-build-815053-149384/root/chroot_tmpdir/scmroot/blosc2
Cloning into '/var/lib/mock/f41-build-815053-149384/root/chroot_tmpdir/scmroot/blosc2'...
$ git fetch origin 4dba6c060f51a58c7fac5708329fe5bdfdca7add:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blosc2
 * [new ref]         4dba6c060f51a58c7fac5708329fe5bdfdca7add -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4dba6c0 Update to 2.14.4 upstream release