The /safeExit URL is exiting Jenkins even when a job is running.

Steps to Reproduce

1. Create the following pipeline job that sleeps

   pipeline {
       agent any
   
       stages {
           stage('Sleep') {
               steps {
                   sh 'sleep 60'
               }
           }
       }
   }
   

2. Launch the above job
3. POST https://myjenkins.com/safeExit

Expected
Jenkins goes into quiet mode and shuts down once the above job completes

Actual
Jenkins shuts down immediately