Oh, okay.
Then I think the value you're setting tempData to is incorrect. You'll need to include the keys of the values you're trying to set in refillForm, something like:
tempNumRows.setValue(1);
tempData.setValue({"rows":[{"type":null, "note":null}]});
refillForm.trigger();
Or, if you find that the value is not set properly before refillForm.trigger(), I think you can try the async method I suggested above, with the updated value in tempData.setValue(...):
await tempNumRows.setValue(1);
await tempData.setValue({"rows":[{"type":null, "note":null}]});
await refillForm.trigger();