Suddenly cannot type [ in Notepad++
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 Cannot type [ in notepad++. It collapses the current level of code instead - it does the same as Ctrl Alt F. Right bracket ] normally just types it. I have no idea how this happened. It was working well before! Could I do it somehow accidentally? How can I fix this? I looked into Settings > Shortcut mapper but the mappings of the Collapse function seem allright:  I posted my question here as well, feel free to respond there: https://superuser.com/q/1501006/93604 
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 I guess you use a czech keyboard, don’t you? So, to input [you have to pressAlt GR + F. UnfortunatelyAlt Grinternally is the same like pressingCtrl + Alt. ThusAlt Gr + Fis the same asCtrl + Alt + Fwhat is mapped toCollapse Current Level.You should remap Collapse Current Levelto another keyboard shortcut.
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 Had the same problem today, 07-Dec-2020 Initially thought there was a problem with the Keyboard, or some gaming settings had come on. But found that it was typing normally in every other program. Finally found the problem. It seems that I had accidentally pressed some key combination that had activated a shortcut that made the file Read-Only. Fiddling around, found a setting in Edit Menu. And removed the Read only status. Everything was normal immediately. 
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