Fix to allow A while in visual mode

[xconverge]

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[johnfn]

This is the Visual Block Mode A. You want the Insert Mode A, right?

[xconverge]

@johnfn no idea what I was doing here, really don't

Same as the other one though, I can find any regressions but can't say I am fluent enough with the commands to know exactly how they could work on all of the edge cases

[johnfn]

Been thinking about this more and I think it's okay. Could you just remove the line

mustBeFirstKey = false;

entirely (as mustBeFirstKey defaults to false so there's no reason to set it).

Same thing with your other PR.

[johnfn]

Thanks, @xconverge!