$eq operator is broken with certain string values

[aberonni]

Steps to reproduce

Perform a filter query with an $eq filter with a string that contains "what JS believes to be a number, but that is actually a string"™

For example, filter.referenceId = $eq:651581942751358e5

Expected result

Elements with the given filter are found.

Actual result

No elements are found

Additional notes

This regression was introduced in #952. It happens because the above string passes the Number.isNumber check, even though the value is not meant to be a number.

In the example above:

const myString = '651581942751358e5'
console.log(Number.isNaN(myString)) // false
console.log(Number(myString)) // 65158194275135800000

The Number() conversion is not problematic with values that are actually numbers - but unfortunately JS has a loose interpretation of which strings actually qualify as numbers.