Test not passing in 4-2-stable Python RE suite

[d-w-moore]

Running the Python RE plugin tests and grepping for nonzero error and failure counts in test output directories :

$ for x in *PREP-test/ ; do echo $x '@@@@' ; grep -r '((failures|errors)="[^0]|@@@@)' -E $x; done|less -X
4_2_stable-ref-PREP-test/ @@@@
4_2_stable-ref-PREP-test/logs/my-prep-run1839751_irods-catalog-provider_2/test-reports/TEST-irods.test.test_native_rule_engine_plugin.Test_Native_Rule_Engine_Plugin-20220830043445.xml:<testsuite errors="2" failures="0" name="irods.test.test_native_rule_engine_plugin.Test_Native_Rule_Engine_Plugin-20220830043445" tests="19" time="301.421">
4_2_stable-ref-PREP-test/logs/my-prep-run1839751_irods-catalog-provider_1/test-reports/TEST-irods.test.test_all_rules.Test_AllRules-20220830035525.xml:<testsuite errors="1" failures="0" name="irods.test.test_all_rules.Test_AllRules-20220830035525" tests="97" time="1791.275">
4_2_stable-ref-PREP-test/logs/my-prep-run1839751_irods-catalog-provider_1/test-reports/TEST-irods.test.test_rulebase.Test_Resource_Session_Vars__3024-20220830073249.xml:<testsuite errors="10" failures="0" name="irods.test.test_rulebase.Test_Resource_Session_Vars__3024-20220830073249" tests="11" time="1137.116">