Nikita Petrenko, Vincent Massol this is a rendering issue: the rendered HTML is invalid because it has block level elements (DIV) inside a paragraph, which the browser tries to fix by splitting the paragraph, thus messing up the macro markers. Basically, the following XWiki syntax:
[[
{{info}}Type your information message here.{{/info}}>>https://www.xwiki.org/xwiki/bin/view/Main/]]
So it looks like we have a problem parsing / rendering the link label. We allow block level content inside it, even if links are mostly used inline, inside paragraphs, where block content is not allowed.