'Check FIRST for this function' crashes IDA 7.0

[p-state]

IDA immediately closes (crash without dump) when I querying only one function. Everything works well when querying for all function. Queried function exists in database.
Tested on: IDA 7.0.171130 and FIRST BETA May 2018

I've made a little investigation and identified that IDA crashes at this point:
https://github.com/vrtadmin/FIRST-plugin-ida/blob/1aa6ae1961ce201ed82aca9abaaf4462b0c04302/first_plugin_ida/first.py#L4717

The row variable contains valid match data from server, I think. But something goes wrong.