[BUG] Duplicate ItemId's being generated, causing references to be made that should not be made.

[Rmkrs]

Environment

Self-Hosted (Docker)

System

Chrome, 108.0.5359.125

Version

2.1.1

Describe the problem

I have some sections for managing some domains that I own.
Their title is set like this:

Domain: SomeDomain.eu
Domain: SomeDomain.nl

These both generate the id 1958, as can be seen in this jsfiddle

The effect this has is that if I edit items inside one section, the corresponding item in the other section gets updated too.
It even generates some &ref references in the yaml config file when updating.

Additional info

No response

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[Rmkrs]

I didn't have any coffee yet when I created the bug report, as it was still early for me ;)
But I guess this is due to the fact that the charcodes of 'eu' combined equal the value of the charcodes of 'nl' combined:

charcode n -> 110
charcode l -> 108
makes 218

charcode e -> 101
charcode u -> 117
makes 218

So 'unhappy' coincedence I guess.

[Rmkrs]

I guess it could be fixed in a fashion similar to what I've done in this jsfiddle

Original
const charSum = sectionTitle.split('').map((a) => a.charCodeAt(0)).reduce((x, y) => x + y);

Improved
const charSum = sectionTitle.split('').map((a) => a.charCodeAt(0)).reduce((x, y) => ((x << 5) - x) + y) | 0;

This does produce a unique item id, even for the same input that clashed for me initially.
The downside is that the unique id increases in size, from 4 to 10 digits.