[scheduler]
    install = changing-file
[scheduling]
    [[graph]]
        R1 = "a => b => c"
[runtime]
    [[a]]
        script = "cat ${CYLC_WORKFLOW_RUN_DIR}/changing-file"
        platform = $CYLC_TEST_PLATFORM
    [[b]]
        script = """echo goodbye > "${CYLC_WORKFLOW_RUN_DIR}/changing-file"; cylc reload $CYLC_WORKFLOW_ID"""
    [[c]]
        script = "cat ${CYLC_WORKFLOW_RUN_DIR}/changing-file"
        platform = $CYLC_TEST_PLATFORM
