README.md in npm package cause gitea to crash

[nmqh]

Description

After the attached file README.md is included in a npm package and published to GITea, and then when package details page is opened in GITea site for this package, GITea crashes (see attached error message)

In the README.md if the following line is removed and published, the gitea app/service does not fail when viewing the package details in GITea.
- The pacakge name @qccat-ui has been renamed to @qccat/core-ui.

Gitea Version

1.18.5

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

GITea is running in windows.

Database

None

[Zettat123]

I think the reason of the panic is the ctx.Ctx is nil

gitea/modules/markup/html.go

Line 615 in 6c35454

if processorHelper.IsUsernameMentionable != nil && processorHelper.IsUsernameMentionable(ctx.Ctx, mentionedUsername) {

ctx.Ctx should be set when create markup.RenderContext

gitea/modules/templates/helper.go

Lines 177 to 180 in 6c35454

	"RenderMarkdownToHtml": func(input string) template.HTML {
	output, err := markdown.RenderString(&markup.RenderContext{
	URLPrefix: setting.AppSubURL,
	}, input)