Some CSV files are using the CSV escape character internally in their
fields. In that case we enter a parsing bug in cl-csv where backtracking
from parsing the escape string isn't possible (or at least
To handle the case, change the quote parameter from \" to just \ and let
cl-csv use its escape-quote mechanism to decide if we're escaping only
separators or just any data.
See AccelerationNet/cl-csv#17 where the escape
mode feature was introduced for pgloader issue #80 already.