latin1 supplement separator not working

• Operating System: macOS Catalina 10.15.7
• Node Version: 14.13.0
• NPM Version: 6.14.8
• csv-parser Version: 3.0.0

Expected Behavior

Using "¬" as a separator in csv file should work. Output should look like:

[ { a: '1', 'b': '2' } ]

Actual Behavior

Parsing seems not correct. Producing something like this:

[ { 'a�b': '1�2' } ]

How Do We Reproduce?

Test file:

a¬b
1¬2

Code:

const csv = require('csv-parser');
const fs = require('fs');
var iconv = require('iconv-lite');
const fileName = ('/tmp/test.csv')
const results = []
fs.createReadStream(fileName)
// .pipe(iconv.decodeStream("utf-8"))
// .pipe(iconv.decodeStream("latin1"))
// .pipe(iconv.encodeStream("utf-8"))
.pipe(csv({
    separator: '¬'
}))
.on('data', (row) => {
    results.push(row)
})
.on('end', () => {
    // console.log(JSON.stringify(results, null, 4))
    console.log(results)
    console.log('CSV file successfully processed');
});

Start by running the provided Node.js example against the supplied a¬b/1¬2 CSV and compare the expected and actual rows. Trace separator handling in csv({ separator: '¬' }) alongside the shown stream encoding options; done means the output has separate a and b fields with values 1 and 2.