I have opened https://github.com/apache/incubator-kie-issues/issues/1892
describing the issue. Let me elaborate here a bit more, currently we have
following possible workflow states
<https://github.com/apache/incubator-kie-kogito-runtimes/blob/main/api/kogito-api/src/main/java/org/kie/kogito/internal/process/runtime/KogitoProcessInstance.java#L29-L34>


int STATE_PENDING = 0;

int STATE_ACTIVE = 1;

int STATE_COMPLETED = 2;

int STATE_ABORTED = 3;

int STATE_SUSPENDED = 4;

int STATE_ERROR = 5;


The idea is to add an additional one, STATE_WAITING, that will be set when
the workflow

return control to the caller (BoundaryEvent nodes mainly)

This will allow Data Index users to know if the workflow is active-waiting
or active-running.


For all other purposes, the workflow will still be active. Therefore,
implementation wise, everyplave in where there is state == ACTIVE, we
should should state=WAITING (Ill probably add an isActive() method with
this check)

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