Can't select the first character of a StringMorph or a TextMorph...

[davidedc]

1. go with the cursor to the left of the first character of a StringMorph or a TextMorph.
2. holding shift, go right

expected: the cursor moves one position to the right and the first character is selected.
obtained: the cursor moves but the first character is not selected.

(Also going left from the first character causes cursor to be drawn at the end of text/string)

(this was fixed in Zombie Kernel but can't remember when, would need bisection)