Successfull completion of [Teardown] overwrites ${TEST_FAILED} built in variable

If a testcase fails it sets the ${TEST_FAILED} built in variable to "true". If that same test case also has a [Teardown] tag and the keyword that the tag points to then runs successfully then it changes the value of the ${TEST_FAILED} from "true" to false.

The [Teardown] result should not change the fact that the test failed. I expect the following to happen:

Test | Teardown | ${TEST_FAILED}

Pass | Pass | false
Pass | Fail | true
Fail | Pass | true
Fail | Fail | true

Here is the code that demonstrates the problem

`Testcase 1
[Documentation] This will set ${TEST_FAILED} to true
should be equal as integers 0 1

Testcase 2
[Documentation] This should fail on the "Should be True" keyword and not get to the "Log" keyword
Should be True ${TEST_FAILED}==${false} msg=One or more tests failed. Don't run this test
Log ${TEST_FAILED}

Testcase 3
[Documentation] This will set ${TEST_FAILED} to true but then the Teardown overwrites the ${TEST_FAILED} to false (BAD!)
[Teardown] should be equal as intergers 0 0
should be equal as integers 0 1

Testcase 4
[Documentation] This should fail and not get to the "Log" keyword. However Testcase 3 overwrote the ${TEST_FAILED} so
now it passes when it should have failed on the first keyword
Should be True ${TEST_FAILED}==${false} msg=One or more tests failed. Don't run this test
Log ${TEST_FAILED}`

Start by running the provided Testcase 1–4 reproduction and inspect how ${TEST_FAILED} is set after a test and its [Teardown] keyword. Done means the variable remains true whenever either the test or teardown fails, matching the expected result matrix.