bpepple
Issue ISBN field does not accept the character `X`
Describe the bug
The ISBN field in the issue create form (https://metron.cloud/issue/create/) seems to be set up to only allow numbers, and throws a validation error when the letter X is included.
To Reproduce Steps to reproduce the behavior:
- Go to (https://metron.cloud/issue/create/)
- Fill the ISBN field with
087135814X - Fill all other required field with valid data and submit
- See error
Expected behavior
The ISBN-10 standard allows for X to be in the last digit, and there are real comics that have an X in that spot. So the expect behavior should be to allow ISBNs containing an X in the final digit to be submitted.
Screenshots
Here is an example of a comic with an X in its ISBN (Adventures of Captain America (1991) 4):
And here's the error when trying to submit:
Additional context
Here's some info on why that digit can be an X: https://en.wikipedia.org/wiki/ISBN#ISBN-10_check_digits
Was wondering if this was ever going to show up. Well, it's easy enough to fix just need to find some time.
