gears.dumpRegistrations() empty response in 2.19.* while not empty in 2.18.2

[oalles]

For this RG.DUMPREGISTRATIONS output:

1) 1) "id"
   2) "0000000000000000000000000000000000000000-1"
   3) "reader"
   4) "CommandReader"
   5) "desc"
   6) "null"
   7) "RegistrationData"
   8) 1) "mode"
      2) "async"
      3) "numTriggered"
      4) "0"
      5) "numSuccess"
      6) "0"
      7) "numFailures"
      8) "0"
      9) "numAborted"
      10) "0"
      11) "lastError"
      12) "null"
      13) "args"
      14) 1) "trigger"
         2) "GetPredictions"
   9) "PD"
   10) "{'sessionId':'0000000000000000000000000000000000000000-0', 'depsList':[{'name':'kats', 'basePath':'/var/opt/redislabs/modules/rg/.venv-/kats', 'wheels':['scipy-1.7.3-cp37-cp37m-manylinux_2_12_x86_64.manylinux2010_x86_64.whl','MarkupSafe-2.1.1-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl','kiwisolver-1.4.3-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.whl','pytest-7.1.2-py3-none-any.whl','setuptools_git-1.2-py2.py3-none-any.whl','importlib_resources-5.8.0-py3-none-any.whl','gpytorch-1.7.0-py2.py3-none-any.whl','numba-0.55.2-cp37-cp37m-manylinux2014_x86_64.manylinux_2_17_x86_64.whl','typeguard-2.13.3-py3-none-any.whl','plotly-5.9.0-py2.py3-none-any.whl','Cython-0.29.30-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_24_x86_64.whl','seaborn-0.11.2-py3-none-any.whl','tomli-2.0.1-py3-none-any.whl','threadpoolctl-3.1.0-py3-none-any.whl','fonttools-4.34.4-py3-none-any.whl','pytz-2022.1-py2.py3-none-any.whl','pystan-2.19.1.1-cp37-cp37m-manylinux1_x86_64.whl','Pillow-9.2.0-cp37-cp37m-manylinux_2_28_x86_64.whl','setuptools-63.1.0-py3-none-any.whl','py-1.11.0-py2.py3-none-any.whl','ax_platform-0.2.4-py3-none-any.whl','python_dateutil-2.8.2-py2.py3-none-any.whl','importlib_metadata-4.12.0-py3-none-any.whl','Jinja2-3.1.2-py3-none-any.whl','scikit_learn-1.0.2-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl','holidays-0.14.2-py3-none-any.whl','korean_lunar_calendar-0.2.1-py3-none-any.whl','fbprophet-0.7.1-py3-none-any.whl','wrapt-1.14.1-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl','packaging-21.3-py3-none-any.whl','pluggy-1.0.0-py2.py3-none-any.whl','cmdstanpy-0.9.5-py3-none-any.whl','convertdate-2.4.0-py3-none-any.whl','cycler-0.11.0-py3-none-any.whl','pytest_mpl-0.16.0-py3-none-any.whl','LunarCalendar-0.0.9-py2.py3-none-any.whl','statsmodels-0.12.2-cp37-cp37m-manylinux1_x86_64.whl','typing_extensions-4.3.0-py3-none-any.whl','pyparsing-3.0.9-py3-none-any.whl','six-1.16.0-py2.py3-none-any.whl','ephem-4.1.3-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl','matplotlib-3.5.2-cp37-cp37m-manylinux_2_5_x86_64.manylinux1_x86_64.whl','pandas-1.3.5-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl','pymannkendall-1.4.2-py3-none-any.whl','numpy-1.21.6-cp37-cp37m-manylinux_2_12_x86_64.manylinux2010_x86_64.whl','joblib-1.1.0-py2.py3-none-any.whl','PyMeeus-0.5.11-py3-none-any.whl','tqdm-4.64.0-py2.py3-none-any.whl','tenacity-8.0.1-py3-none-any.whl','patsy-0.5.2-py2.py3-none-any.whl','torch-1.12.0-cp37-cp37m-manylinux1_x86_64.whl','parameterized-0.8.1-py2.py3-none-any.whl','Deprecated-1.2.13-py2.py3-none-any.whl','zipp-3.8.0-py3-none-any.whl','kats-0.2.0-py3-none-any.whl','multipledispatch-0.6.0-py3-none-any.whl','iniconfig-1.1.1-py2.py3-none-any.whl','hijri_converter-2.2.4-py3-none-any.whl','attrs-21.4.0-py2.py3-none-any.whl','llvmlite-0.38.1-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl','botorch-0.6.2-py3-none-any.whl']}]}"

Following Java code:

    @PostConstruct
    public void checkRGRegistrations() {

        RedisGearsCommands<String, String> gears = connection.sync();
        List<Registration> registrations = gears.dumpregistrations();

        Assert.isTrue(!registrations.isEmpty(), "registrations should not be empty");
    }

Completes when 2.18.2, Fails with 2.19.* dependencies :

<dependency>
    <groupId>com.redis</groupId>
    <artifactId>spring-lettucemod</artifactId>
    <version>2.19.*</version>
</dependency>