No error with === undefined (or null) against a type that doesn't contain undefined (2367)

[Retsam]

TypeScript Version: Version 3.9.0-dev.20200229

Search Terms: 2367, no overlap,

Code

if("str" === undefined) { /* ... */ }

Expected behavior:
Expected error (with strictNullChecks on): This condition will always return 'false' since the types 'string' and 'undefined' have no overlap

Actual behavior:
No error

Playground Link: https://www.typescriptlang.org/play/?ssl=1&ssc=1&pln=1&pc=40#code/JYMwBAFARALgpgZxlMBedYCuA7AJnEYbOXASjAG8wB6AKjADomxbqwBfIA

Related Issues:
#32627
typescript-eslint#1591

[Retsam]

@RyanCavanaugh Marked as duplicate, can you link the issue that this duplicates? I couldn't find anything more similar than #32627. Thanks!

[RyanCavanaugh]

#30519, #11920

[Retsam]

Thanks, sorry I missed those.