Individual "not" conditions seem to have different beahviour than grouping it

[roDew]

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Environment

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...

Reproduction steps

Hi guys,

I'm creating a pipeline that has a condition like that:

            stage('Create, tag, scan and push the Docker image') {
               when {
                 //1st condition
                   anyOf {
                       expression { return params.PARAM1 }
                       expression { return params.PARAM2 }
                 //2nd condition
                       allOf {
                           branch 'release/**'
                           expression { env.VARIABLE == 'something' }
                       }
                 //3rd condition
                       allOf {
                           not { branch('release/**') }
                           not { changeRequest() }
                       }
                   }
               }
               steps {
                   someCustomMethod(...)
               }
            }

And this is one of my tests I'm doing adding in my tests:

    //This test seems to not react properly to the changeRequest()
    @Test
    void "when all flags are false and not release branch but PR is open then my special method is invoked"()
    {
        def customEnv = ["COMPONENT_OWNER" : "Something", "COMPONENT_NAME" : "else", "VAR_3" : "Not compulsory"]
        addParam("PARAM1", false, true)
        addParam("PARAM2", false, true)
        addEnvVar('CHANGE_BRANCH', 'develop')
        addEnvVar('BRANCH_NAME', 'feature/blah')
        addEnvVar('BUILD_NUMBER', '10')

        myPipeline.call(customEnv)

        assertEquals(false, myspecialmethodIsInvoked)
 
        printCallStack()
        assertJobStatusSuccess()
    }

### Expected Results

I would expect that my "myspecialmethodIsInvoked" is executed only when the branch is not release and when there is not a PR, so in my case that I have a PR open, I would expect not to be executed but with the pipeline as it is, it is all the time executed because of the 3rd condition (I tested the other 2)

### Actual Results

I changed the code of the pipeline by:

                   not {
                       anyOf { 
                           branch('release/**')
                           changeRequest()
                       }
                   }

and it seems to work as I was expected with the branch, but "changeRequest" seems to ignore the setting of the CHANGE_NAME 

but it seems to ignore it.

Am I missing anything?

Anything else?

No response