Merge pull request #1119 from MetOffice/family_trigger_on_non_family_…

…namespace_fix

Add dummy tasks to prevent workflow graph failures

cset-workflow/flow.cylc

@@ -130,6 +130,7 @@ URL = https://metoffice.github.io/CSET
             ROSE_APP_OPT_CONF_KEYS = {{METPLUS_OPT_CONFIG_KEYS}}
         {% endif %}
 
+    # Noop tasks to ensure a complete/efficient workflow graph
     [[DUMMY_TASK]]
     script = true
     platform = localhost
@@ -144,6 +145,12 @@ URL = https://metoffice.github.io/CSET
     [[cycle_complete]]
     inherit = DUMMY_TASK
 
+    [[dummy_process]]
+    inherit = DUMMY_TASK, PROCESS
+
+    [[dummy_process_case_aggregation]]
+    inherit = DUMMY_TASK, PROCESS_CASE_AGGREGATION
+
     [[build_conda]]
     # Create the conda environment if it does not yet exist, possibly installing
     # CSET from source.