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wxiaoguang 6886706f5a
Fix broken code editor diff preview (#23307)
Close #23265, the code editor diff preview has been broken for long
time.

* Fix the regression for `data-line-num`
    * `.code-diff` is necessary to show the line number
* Fix the regression for #12434
* The diff:
[12434](https://github.com/go-gitea/gitea/pull/12434/files?diff=unified&w=1)
    * It hides the Type(4) (aka HunkHeader)  for unexpected cases.


Diff with ignoring whitespaces:
https://github.com/go-gitea/gitea/pull/23307/files?diff=unified&w=1

Before: see the issue #23265

After:

![image](https://user-images.githubusercontent.com/2114189/222942810-286dc9af-0b39-4e9d-8585-8c299b881241.png)
1 year ago
..
cherry_pick.tmpl Add main landmark to templates and adjust titles (#22670) 1 year ago
commit_form.tmpl Fix missed `.hide` class (#23208) 1 year ago
delete.tmpl Add main landmark to templates and adjust titles (#22670) 1 year ago
diff_preview.tmpl Fix broken code editor diff preview (#23307) 1 year ago
edit.tmpl Refactor hiding-methods, remove jQuery show/hide, remove `.hide` class, remove inline style=display:none (#22950) 1 year ago
patch.tmpl Refactor hiding-methods, remove jQuery show/hide, remove `.hide` class, remove inline style=display:none (#22950) 1 year ago
upload.tmpl Add main landmark to templates and adjust titles (#22670) 1 year ago