Steps to reproduce

1. Create a new Pipeline with the Jenkinsfile below and run it
2. Accept the first input in stage one
3. Execution should proceed to stage two
4. Do not proceed with the second input
5. Click on stage one
6. The input step asked for input again

What you should see
If an input step has already been proceeded upon then the log of that step should show

node {
    stage("one") {
        sh 'ping -c 5 localhost'
        input 'Continue buddy?'
    }
    stage("two") {
        sh 'ping -c 5 localhost'
        input 'Continue buddy?'
    }
}