null pointer on provisioning diagnostics when no memberships

Note: GcGrouperSyncMembership: GcGrouperSyncMembership(grouperSyncGroupId='77627f31a8154569aa917c78ace116ff', grouperSyncMemberId='272f088be4fc4ce6bf6d5598cb62cc73', id='015e70a8f6444cea8171eece95725ec7', lastUpdated='2023-04-06 20:36:34.339') (elapsed: 0:00:00.751)

Error: Adding entity to group (elapsed: 0:00:00.752)

java.lang.NullPointerException: Cannot invoke "edu.internet2.middleware.grouper.app.provisioning.ProvisioningAttribute.getValue()" because the return value of "java.util.Map.get(Object)" is null

	at edu.internet2.middleware.grouper.app.provisioning.GrouperProvisioningDiagnosticsContainer.appendInsertGroupAttributesMembershipIntoTarget(GrouperProvisioningDiagnosticsContainer.java:615)

	at edu.internet2.middleware.grouper.app.provisioning.GrouperProvisioningDiagnosticsContainer.runDiagnostics(GrouperProvisioningDiagnosticsContainer.java:211)

	at edu.internet2.middleware.grouper.app.provisioning.GrouperProvisioningType$2.provision(GrouperProvisioningType.java:72)

	at edu.internet2.middleware.grouper.app.provisioning.GrouperProvisioningLogic.provision(GrouperProvisioningLogic.java:77)

	at