fread does not always work when csv file contains newlines in quoted fields

[vlsi]

Here's input file (sorry, I had to scramble the data, however the error message is pretty much the same): https://gist.github.com/vlsi/34f56202bc8aaf665581

In general it looks like autostart does not work.
Altering sep and/or autostart parameters does not help.

Can you please provide a way to tell fread "I promise this file is comma delimited and doublequote-quoted"?

> fread("data_table_quoted_multiline_fields.csv", autostart=1)
Error in fread("data_table_quoted_multiline_fields.csv", autostart = 1) : 
  Expected sep (',') but new line, EOF (or other non printing character)
ends field 1 on line 3 when detecting types:    ETGIOHCFFB MCTAK/EVPN LFRHC

[mattdowle]

Thanks for the test file on this one. Was really useful and is now included in the test suite.

[vlsi]

I've just run into another case of the similar issue and the update of data.table solves it. Thanks.