Events Schema Blocks Negative Round Off Values

[williebsweet]

We have negative round off values for some of our Chargebee event-based credit notes. For example, rounding from 13.10 to 13.00 results in a -0.10 round off whcih is replresented as -10 in the event data - resulting in the following error:

Failed validating 'minimum' in schema['properties']['content']['properties']['credit_note']['properties']['round_off_amount']:
    {'minimum': 0, 'type': ['null', 'integer']}

On instance['content']['credit_note']['round_off_amount']:
    -10