Quote:
Originally Posted by louwin
This is how to do it By Someone who did it and didn't want to do it! 
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Please confirm this is a bug 
Please don't say this is performing to spec  |
Unfortunately for you, it is indeed "performing to spec". What you did is exactly what I described in post 8. You asked calibre to replace the <empty value> (the miniscule space between every visible character) with SciFi, and it happily did exactly that.
Although replacing the empty value can sometimes be useful, an argument could be made that calibre shouldn't do it in character mode, because this is considered to be "basic" functionality. Under this argument, the functionality would remain in regexp mode. I will think about this a bit.