A DESCRIPTION OF THE PROBLEM :
DateTimeFormatter fails on parsing "yyyyMMddHHmmssSSS" for given String "20180215062445678", because `subsequentWidth` is calculated wrong which brings `effMaxWidth` for year parsing to numbers greater than 4 and it fails immediately there. However, "yyyyMMddHHmmss SSS" for "20180215062445 678", or any other delimiter between seconds and a fraction part of a second works absolutely fine.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. try to execute:
 `ZonedDateTime.parse("20180215062445 678 Europe/Vienna", DateTimeFormatter.ofPattern("yyyyMMddHHmmss SSS z"));`
to see that it doesn't fail;
2. try to execute:
 `ZonedDateTime.parse("20180215062445678 Europe/Vienna", DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS z"));`
to see that it fails;

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Second step shouldn't fail. It doesn't violate any description of the format from Java Docs.
ACTUAL -
An exception is thrown:
java.time.format.DateTimeParseException: Text '20180215062445678 Europe/Vienna' could not be parsed at index 0

---------- BEGIN SOURCE ----------
@Test
void itShouldNotFail() {
    ZonedDateTime.parse("20180215062445678 Europe/Vienna", DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS z"));
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Joda time works fine with this pattern. So the workaround (in Kotlin) is:
```
	fun parseDateTime(input: String, format: String): ZonedDateTime {
		return try {
			ZonedDateTime.parse(input, DateTimeFormatter.ofPattern(format))
		} catch (e: DateTimeParseException) {
			val dt = DateTimeFormat.forPattern(format).parseDateTime(input)
			dt.toZonedDateTime()
		}
	}

	private fun DateTime.toZonedDateTime(): ZonedDateTime =
			ZonedDateTime.ofLocal(
					LocalDateTime.of(
							year,
							monthOfYear,
							dayOfMonth,
							hourOfDay,
							minuteOfHour,
							secondOfMinute,
							millisOfSecond * 1_000_000
					),
					ZoneId.of(zone.id, ZoneId.SHORT_IDS),
					ZoneOffset.ofTotalSeconds(zone.getOffset(this) / 1000)
			)
```

FREQUENCY : always