refactor(pubsub): Clean up the delta frame change detection
refactor(pubsub): Clean up the delta frame change detection

open62541/open62541,open62541/open62541,StalderT/open62541,open62541/open62541,open62541/open62541,JGrothoff/open62541,StalderT/open62541,StalderT/open62541,jpfr/open62541,StalderT/open62541,JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,jpfr/open62541,JGrothoff/open62541,jpfr/open62541