freezes on multiline strip patterns

[scoavoux]

I am trying to ignore a multiline pattern (html-formatted comments). It works fine for the global count. However, whenever I select lines in an ignored pattern, sublime freezes. Here is the regex:

"strip": {
    "markdown" : [
        "<!--(\n?.*?)+-->"
    ]
}

[Tito]

can you please provide an example