The newline break is missing in Issue content

[zjjhot]

Description

The newline break is missing in Issue content ， for example

---

edit(OK):
1
2
3

preview tab (OK):
1
2
3

actual web page display as (newline break is missing) :
123

also see below

---

edit(OK):

> 1
> 2
> 3

preview(OK with quote block):
| 1
| 2
| 3

actual web page display as (newline break is missing) :
| 123

---

Gitea Version

main branch

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

main branch

Operating System

windows

How are you running Gitea?

windows with ms sql server

Database

SQLite

[lunny]

Regression from #32492

[wxiaoguang]

Will fix it

[wxiaoguang]

Let's try this: Improve markdown rendering #32522

[wxiaoguang]

1.23 nightly is ready, could you take a try?

ps: before 1.23 frozen, there will be some more refactorings to the render system to make it maintainable and secure. if there is any regression, feel free to open an issue and I will fix them ASAP.