[scheduler]
    allow implicit tasks = True
[scheduling]
    cycling mode = integer
    initial cycle point = 1
    final cycle point = 2
    [[graph]]
        P1 = "foo[-P1] => foo => bar => baz"
        R1/2/ = "foo => triggerer"
[runtime]
    [[triggerer]]
         script = """
            # Cause only 1/bar to run again.
            cylc trigger "${CYLC_WORKFLOW_ID}//1/bar"
         """
