Fixes #8796

[chfleury]

Description of change

If you pass false to a field in the select object, it will not select that field.
Before this PR, it would select fields marked as false.

Example:

userRepository.find({
    select: {
        firstName: true,
        lastName: false, // note false
    },
})

would return even properties marked as false

{
    firstName:  'foo',
    lastName:  'bar',
},

now returns

{
    firstName:  'foo',
},

This PR Fixes #8796

I wasn't able to run all the tests, but I ran mine, and it passed.

Pull-Request Checklist

• Code is up-to-date with the master branch
• npm run format to apply prettier formatting
• npm run test passes with this change
• This pull request links relevant issues as Fixes #0000
• There are new or updated unit tests validating the change
• Documentation has been updated to reflect this change
• The new commits follow conventions explained in CONTRIBUTING.md

PS: this is my first PR ever.

[pleerock]

A great first PR! Congratulations 🎉

Looks great, once tests pass I'll merge this PR.

[chfleury]

A great first PR! Congratulations tada

Looks great, once tests pass I'll merge this PR.

thank you so much for encouraging new contributors!

[pleerock]

Thank you very much!