Build failed in Jenkins: beam_PostCommit_Java_RunnableOnService_Flink #1154

See -- [...truncated 10046 lines...] error: 'refs/remotes/origin/pr/900/head' exists; cannot create 'refs/remotes/origin/pr/900' ! [new ref] refs/pull/900/head -> o

Build failed in Jenkins: beam_PostCommit_Java_RunnableOnService_Flink #1154

See -- [...truncated 10046 lines...] error: 'refs/remotes/origin/pr/900/head' exists; cannot create 'refs/remotes/origin/pr/900' ! [new ref] refs/pull/900/head -> o