Markdown editor doesn't increment points in numbered lists on enter

[TheFox0x7]

Description

When making a numbered list the editor always inserts 1. as next item.

Reproduction steps:

1. Make an issue
2. Make a numbered list with more than one point
3. Next point is always 1.

This has no impact on later rendering of the list, numbers are correct there.
https://demo.gitea.com/TheFox0x7/runs-on_bug/issues/1

Screenshots

Gitea Version

2298ff2

Can you reproduce the bug on the Gitea demo site?

Yes

Operating System

Linux

Browser Version

Firefox 133.0.3

[harryvince]

I could be wrong but just looking at the MarkdownEditor.ts file, can see that 1. is hardcoded in the newPrefix https://github.com/go-gitea/gitea/blob/main/web_src/js/features/comp/EditorMarkdown.ts#L100

[wxiaoguang]

The more background details are here:

• fix textarea newline handle #32966 (comment)
• fix textarea newline handle #32966 (comment)

I didn't do that because there will be many edge cases to make the "increment" right. While keep using 1. still make the render work right.

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If there could be a (nearly) complete improvement and test, then we can use it.

Update: made some changes in #33187, it should be able to handle most edge cases now.