Referenced issue link erroneously added when # is used in a code block

[bobemoe]

• Gitea version (or commit ref): 1.10.0+dev-377-gbc5a479fe

Description

I see recently new functionality #4302 that adds a backlink to the referencing issue.

However its being added if #{id} is found in a code block, e.g:

this probably shouldn't reference #8137 
not sure if github does this too, this will be a good test!
EDIT: it does not!

See https://try.gitea.io/bobemoe/test/issues/4

I also notice if you edit your comment, you get a duplicate reference link.

[guillep2k]

This should be fixed by #8261

[stale]

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