Assertions not working correctly for sub-samples

### Expected behavior

When I create an assertion in an HTTP sampler that has a redirection as a response and I need to add an assertion to the sub-sample, when I select the radio button "Sub-samples Only" in the Response assertion component, that assertion should only be applied to the sub-sample, and not to the main request.

### Actual behavior

When I add an assertion with the "Sub-samples Only" selected, that assertion is failing in the main sampler where it shouldn't be evaluated

### Steps to reproduce the problem

Record a script that has a redirection e.g navigate to http://google.com. that has a response Response code:302 and redirects to another page that has the final HTML. Add an assertion to validate that final HTML and select the option "Sub-samples Only" to avoid validating the assertion in the main/initial request then run the script and the assertion fails.

### JMeter Version

5.5

### Java Version

openjdk version "1.8.0_212" OpenJDK Runtime Environment (Zulu 8.38.0.13-CA-win64) (build 1.8.0_212-b04) OpenJDK 64-Bit Server VM (Zulu 8.38.0.13-CA-win64) (build 25.212-b04, mixed mode)

### OS Version

Windows 10 Entrerprise 21H2 OS build 19044.2251