Column Selection selects the wrong characters and glitches the line highlighting

[alexchandel]

Replication

1. Type the following lines:

10
20
30
40
50

2. Use column selection to select the end of the first 4 lines, dragging from the top down and ensuring you drag the selection rectangle well past the end of the lines. Like so:

If done right, although it isn't visible, Column Selection is glitched on the first 3 lines.

3. Press the right arrow. (The cursor is now at the beginning of the next 4 lines.)

4. Hold shift and press the left arrow. If step 2 was done correctly, Column Selection incorrectly selects several characters on the first 3 lines:

As a bonus, the line highlighting for the first line is now permanently glitched.

[Nemesis7]

I have the same problem here. Also when starting the selection I have to start 1 character to the left to select what I want.

[snow212-cn]

Same problem to above. The author bigfive shows up and disappears repeatedly, so irresponsible.

[alexchandel]

@bigfive Have you been able to reproduce this issue yourself?