Error in fromNow() method using String as input

[MaxSchilling]

Describe the bug

After the update from Jiffy 5 to version 6.2.1, the fromNow() method is failing using a Jiffy.parse(createdAt).fromNow() - recommending using a pattern (Error message: "Could not read date time of input 2023-11-15T08:48:02.169584+00:00, try using a pattern, e.g. input: "12, Oct", pattern: "dd, MMM""

If I then add a pattern, like also suggested here: #227
Trying this:
Jiffy.parse(createdAt, pattern: 'yyyy-MM-ddThh:mm:ss', isUtc: true)
.fromNow();

Results in:
"Could not parse input 202311-15T08:48:02.169584+00:00, failed with the following error: FormatException: Trying to read - from 202311-15T08:48:02.169584+00:00 at 10"

the createdAt timestamp as input was: 2023-11-15T08:48:02.169584+00:00
Somehow during the internal _parse methods, the first "-" gets lost when using a pattern.

How to reproduce the bug

1. Try to use the fromNow() method with any Iso date string and the respective pattern
2. Find error

What is the expected behavior

Correct calculation of "fromNow" which also includes the timezone / UTC true/false

Screenshots
Step before with correct String in parser.dart:

Step afterwards with missing "-":

Step
If applicable, add screenshots to help explain your problem.

Additional information

Converting the String-date in a DateTime object and calculating the fromNow() from there works fine.

[debjeetproso]

Have you found any solution for this ?

[jama5262]

@MaxSchilling I was not able to reproduce the issue, in v6.2.1, can you try again, but using Jiffy v6.3.0?