Filetypes duplicates when you set filetype

[dustdfg]

Description of the problem or steps to reproduce

TL;DR it is not a problem of the filetype but almost about reloading and solvable by #3062

When I use set filetype <filetype> the auto-completion duplicate names

1. Open micro
2. Write set filetype
3. Press tab
4. Press enter
5. Write again set filetype
6. Press tab again

Roots of the problem

Firstly I thought problem in https://github.com/zyedidia/micro/blob/5ae2799b7044f625012dbde916091f81a01b383a/internal/action/infocomplete.go#L62-L96
But then I realized that code for color schemes auto-completion is the same as for filetype auto-completion.
https://github.com/zyedidia/micro/blob/5ae2799b7044f625012dbde916091f81a01b383a/internal/action/infocomplete.go#L190-L194
They even used both in the same way so the problem not in the action/infocomplete.go

The problem is somewhere inside the buffer.SetOption function which tries to make reload

https://github.com/zyedidia/micro/blob/5ae2799b7044f625012dbde916091f81a01b383a/internal/buffer/settings.go#L22-L33

Specifications

Version: 2.0.14-dev.77
Commit hash: 5ae2799
OS: debian 12/testing
Terminal: foot

[dustdfg]

One more reason to test that PR :)

[JoeKar]

Fixed with #3343.