gitea: Wiki template error with golang 1.14

• Gitea version (or commit ref): 1.11.1
• Git version: 2.24.1
• Operating system: Docker Alpine 3.11
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

Description

When building an image (not the official one) with golang:alpine (which, as of now, points to 1.14.0-alpine3.11), trying to view a wiki page result on a blank html page with this error from the template engine :

template: repo/wiki/view:48:14: executing "repo/wiki/view" at <(not $.DisableHTTP) (and (not $.DisableSSH) (or $.IsSigned $.ExposeAnonSSH))>: can't give argument to non-function not $.DisableHTTP

I did no try to rebuild the official image using golang 1.14, but it works fine if I build the same image with golang:1.13-alpine.

Also the issue was quite hard (for me) to track as there is no error in the logs even with all levels set to trace.

I think it might be related to #5697 and #4817

Screenshots

The wiki pages

After clicking on the page

P.S Note that the build layer of my image is nothing fancy :

  apk --no-cache add \
  build-base \
  git \
  nodejs \
  npm \
  && \
  git clone --single-branch --branch "v${GITEA_VERSION}" --depth 1 'https://github.com/go-gitea/gitea' && \
  cd gitea && \
  make clean build