wont decode page with json/collate - TypeError: datetime.time(0, 0) is not JSON serializable

[kenstack]

Im decoding history from a 722 and started to get crashes on decoding the second page. If I turn collate off it decodes just fine. When I turn --collate to get json output I get the following error

File "/usr/lib/python2.7/json/encoder.py", line 177, in default raise TypeError(repr(o) + " is not JSON serializable") TypeError: datetime.time(0, 0) is not JSON serializable

I put some prints into the python code - the offending record is below - all records before that parse just fine

RECORD 18 {'_type': 'ChangeBasalProfile_old_profile', '_description': 'ChangeBasalProfile_old_profile 2016-06-16T18:37:55 head[2], body[145] op[0x08]', 'timestamp': '2016-06-16T18:37:55', '_body': '0030000234000d3a000f2a00122400162400181c001a10001e1c0022260027360000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', '_head': '080b', 'rate': 'offset', '_date': '77a5121010'}

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