parse go-formatted timestamp from csv

[juko-bal]

Relevant telegraf.conf:

[input.file]
csv_timestamp_format="02.01.2006 15:04:05"
    data_format="csv"
    csv_column_names = ["a","time","b", "c", "d"]
   (same behaviourwith or without next line)
    csv_column_types = ["string","string","string","string","string"] 
    csv_delimiter=";"
    csv_tag_columns=["c"]
    csv_measurement_column="a"
    csv_timestamp_column="time"

System info:

Telegraf V1.12.1
on Debian Buster

Steps to reproduce:

1. csv_timestamp_format="02-01-2006 15:04:05"
   file data ...;"09-07-2019 00:11:00";...

2. csv_timestamp_format="02.01.2006 15:04:05"
   file data ...;"09.07.2019 00:11:00";...

Expected behavior:

Both format strings(1) and (2) should work

Actual behavior:

Configuration 1 operates as expected
Configuration 2 throws error
[inputs.file] Error in plugin: strconv.ParseInt: parsing "07.2019 0": invalid syntax

Additional info:

Configuration (2) worked in a previous test. Version? (spring 2019)