Make sync command reload sponge data too - resolves #98

common/src/main/java/me/lucko/luckperms/common/LuckPermsPlugin.java

@@ -366,4 +366,11 @@ public interface LuckPermsPlugin {
      */
     BufferedRequest<Void> getUpdateTaskBuffer();
 
+    /**
+     * Called at the end of the sync task.
+     */
+    default void onPostUpdate() {
+
+    }
+
 }

common/src/main/java/me/lucko/luckperms/common/tasks/UpdateTask.java

@@ -54,6 +54,8 @@ public class UpdateTask implements Runnable {
         // Refresh all online users.
         plugin.getUserManager().updateAllUsers();
 
+        plugin.onPostUpdate();
+
         plugin.getApiProvider().fireEvent(new PostSyncEvent());
     }
 }

sponge/src/main/java/me/lucko/luckperms/sponge/LPSpongePlugin.java

@@ -62,6 +62,8 @@ import me.lucko.luckperms.sponge.managers.SpongeGroupManager;
 import me.lucko.luckperms.sponge.managers.SpongeUserManager;
 import me.lucko.luckperms.sponge.service.LuckPermsService;
 import me.lucko.luckperms.sponge.service.ServiceCacheHousekeepingTask;
+import me.lucko.luckperms.sponge.service.base.LPSubjectCollection;
+import me.lucko.luckperms.sponge.service.persisted.PersistedCollection;
 import me.lucko.luckperms.sponge.timings.LPTimings;
 import me.lucko.luckperms.sponge.utils.VersionData;
 
@@ -305,6 +307,16 @@ public class LPSpongePlugin implements LuckPermsPlugin {
         }
     }
 
+    @Override
+    public void onPostUpdate() {
+        for (LPSubjectCollection collection : service.getCollections().values()) {
+            if (collection instanceof PersistedCollection) {
+                ((PersistedCollection) collection).loadAll();
+            }
+        }
+        service.invalidateParentCaches();
+    }
+
     @SuppressWarnings("ResultOfMethodCallIgnored")
     @Override
     public File getMainDir() {