I would like to report a possbile issue, here is the steps to reproduce:
1.Open a new file and input "111 222 333 444 555"
2.Select "Search"->"Replace..." from menu bar
3.check the "Regular Expressions",find " " and replace "\n"
4.CPU usage become 100%, but program has no response.

Thanks for your great work~ :-)

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Odpovedet emailem