Block selection cursor doesn't indent last line on tab

Steps to reproduce

1. File -> New file or project -> C++ -> C++ source file
2. Add some lines:

#define a 0x01
#define b 0x02
#define c 0x04
#define d 0x08

3. Change the defines to an enum:

3a)

enum bits {
#define a 0x01
#define b 0x02
#define c 0x04
#define d 0x08
};

3b)

Do a block selection around all #defines, press backspace to delete the '#define', press tab.

4. Result (d is not intended):

enum bits {
    a 0x01
    b 0x02
    c 0x04
d 0x08
};

Expected:

enum bits {
    a 0x01
    b 0x02
    c 0x04
    d 0x08
};