Fix generic mojo returning corrupted object as ignored_columns parameter

[exalate-issue-sync]

Fetching the ignored_columns from the model's parameters on generic mojo returns corrupted object. It should return list of strings like original model. It was working well in 3.30.0.3.. reproducible like this:

{code:java}
airlines_gbm.train(y = response, training_frame = train, validation_frame = valid)
airlines_gbm.download_mojo('my_mojo.zip')
model_from_mojo = h2o.import_mojo('my_mojo.zip')
{code}

[h2o-ops-ro]

JIRA Issue Details

Jira Issue: PUBDEV-8309
Assignee: Zuzana Olajcová
Reporter: Zuzana Olajcová
State: Resolved
Fix Version: 3.32.1.7
Attachments: N/A
Development PRs: Available

[h2o-ops-ro]

Linked PRs from JIRA

#5663