Shift + Command +Arrow to reduce selection ignores current cursor position

I've selected the {bold text in braces} using my keyboard, starting at the bottom line and moving up (the | character indicates where the cursor currently is):

AAA |{BBB CCC

DDD} EEE FFF

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Now, I would like to change the selection so that it starts at the end of the first line, i.e. so that it looks like this:

AAA BBB CCC |{

DDD} EEE FFF

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The natural way to do it would be via Shift + Control + → , and many decent text editors work as expected (for instance Sublime Text2).

Native OSX apps, however, ignore the fact that the cursor is currently at the start of the selection, and moving it to the right should remove the selection there. Instead, they always extend the selection from the end of it until the end of the line:

AAA {BBB CCC

DDD EEE FFF}|

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Is there any way to make also native OSX apps behave the expected way?