Selecting text from a punctuation sign selects previous word.

        int start = end;

        for (; start > 0; start--) {

            if (start == end) {

                // Cases where the text ends with a '.' and we select from the end of the line

                // (right after the dot), or when we select from the space character in "aaa, bbb".

                final char c = mTransformed.charAt(start);

                final int type = Character.getType(c);

                if (type == Character.OTHER_PUNCTUATION) continue;

            }

            if (!isWordCharacter(start - 1)) break;

            if ((end - start) > MAX_LENGTH) return -1;

        }