Firefox bug 329515: Under some conditions, when the contents of an inline element starting with a space is selected, the space is added to the selection.

Select this from the S with click and drag (wrong).

Same test without the space (correct).

Same test without the span (correct).

Test: Same test with some text before (correct).

Test: Same test with some text and space before (wrong).

Test: Same test with 2 span (correct).