a top pipeline named A

many subpipeline named M1,M2...

Step:

1.start build A,buildId is 1,call two subpipeline M1 and M2

2.M1 is finished ,M2 is pending

3.use url "A/1/wfapi" to get pipeline stages info

expect:

    i can see M1 status is SUCCESS,M2 status is IN_PROGRESS

real:

  M1 status is SUCCESS,M2 status is SUCCESS

so why the wfapi can't get real status ,or is any way to get the real status?