Github user aledsage commented on a diff in the pull request:

    https://github.com/apache/incubator-brooklyn/pull/617#discussion_r30578361
  
    --- Diff: core/src/main/java/brooklyn/entity/rebind/RebindIteration.java ---
    @@ -341,38 +340,67 @@ protected void rebuildCatalog() {
                     }
                 }
             }
    +
    +        // See notes in CatalogInitialization
             
    -        // Register catalogue items with the management context. Loads the 
bundles in the OSGi framework.
    -        CatalogLoadMode catalogLoadMode = 
managementContext.getConfig().getConfig(BrooklynServerConfig.CATALOG_LOAD_MODE);
    +        Collection<CatalogItem<?, ?>> catalogItems = 
rebindContext.getCatalogItems();
    +        CatalogInitialization catInit = 
((ManagementContextInternal)managementContext).getCatalogInitialization();
    +        catInit.injectManagementContext(managementContext);
    +        catInit.applyCatalogLoadMode();
    +        Collection<CatalogItem<?,?>> itemsForResettingCatalog = null;
    +        boolean needsInitialCatalog;
             if (rebindManager.persistCatalogItemsEnabled) {
    -            boolean shouldResetCatalog = catalogLoadMode == 
CatalogLoadMode.LOAD_PERSISTED_STATE
    -                    || (!isEmpty && catalogLoadMode == 
CatalogLoadMode.LOAD_BROOKLYN_CATALOG_URL_IF_NO_PERSISTED_STATE);
    -            boolean shouldLoadDefaultCatalog = catalogLoadMode == 
CatalogLoadMode.LOAD_BROOKLYN_CATALOG_URL
    -                    || (isEmpty && catalogLoadMode == 
CatalogLoadMode.LOAD_BROOKLYN_CATALOG_URL_IF_NO_PERSISTED_STATE);
    -            if (shouldResetCatalog) {
    -                // Reset catalog with previously persisted state
    -                logRebindingDebug("RebindManager resetting management 
context catalog to previously persisted state");
    -                
managementContext.getCatalog().reset(rebindContext.getCatalogItems());
    -            } else if (shouldLoadDefaultCatalog) {
    -                // Load catalogue as normal
    -                // TODO in read-only mode, should do this less frequently 
than entities etc
    -                logRebindingDebug("RebindManager loading default catalog");
    -                ((BasicBrooklynCatalog) 
managementContext.getCatalog()).resetCatalogToContentsAtConfiguredUrl();
    +            if (!catInit.hasRunOfficial() && 
catInit.isInitialResetRequested()) {
    +                String message = "RebindManager resetting catalog on first 
run (catalog persistence enabled, but reset explicitly specified). ";
    +                if (catalogItems.isEmpty()) {
    +                    message += "Catalog was empty anyway.";
    +                } else {
    +                    message += "Deleting "+catalogItems.size()+" persisted 
catalog item"+Strings.s(catalogItems)+": "+catalogItems;
    +                    if (shouldLogRebinding()) {
    +                        LOG.info(message);
    +                    }
    +                }
    +                logRebindingDebug(message);
    +
    +                itemsForResettingCatalog = 
MutableList.<CatalogItem<?,?>>of();
    +                
    +                PersisterDeltaImpl delta = new PersisterDeltaImpl();
    +                for (String catalogItemId: 
mementoRawData.getCatalogItems().keySet()) {
    --- End diff --
    
    just do 
`delta.removedCatalogItemIds.addAll(mementoRawData.getCatalogItems().keySet())`


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