Stunner - [BPMN] On deleting a project which defines ruleflow groups, business rule tasks cannot be configured properly

Create a project and add a guided rule asset that has a ruleflow-group attribute defined. Create a second project with a guidedrule asset that has a ruleflow-group attribute defined. Add to the second project a business process asset with a business rule task node. Delete the first test project. Open the Business Process asset in the second project and click on the Business Rule Task. An exception will be thrown in the app server log (see attached exception.txt) and a "System Error" dialog will be presented to the user. Log out. Log back in and attempt to add another business rule task to the business process in the second project. See attached images for illustrations of some of the steps. Actual Result There are no ruleflow groups populated in the drop down list, not even the ruleflow group defined in the second project (which is still valid). This is caused by the RHPAM-2740 issue. Once a user clicks on canvas and then back on Business Rule Task, both ruleflow groups are populated in the list. Expected Result Only Ruleflow groups from valid projects should be populated in the list.