Save the vault when saving group filter right after a vault version bump

app/src/main/java/com/beemdevelopment/aegis/ui/MainActivity.java

@@ -1047,6 +1047,9 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
 
     @Override
     public void onSaveGroupFilter(Set<UUID> groupFilter) {
+        if (_vaultManager.getVault().isGroupsMigrationFresh()) {
+            saveAndBackupVault();
+        }
         _prefs.setGroupFilter(groupFilter);
     }
 

app/src/main/java/com/beemdevelopment/aegis/vault/Vault.java

@@ -16,6 +16,9 @@ public class Vault {
     private final UUIDMap<VaultEntry> _entries = new UUIDMap<>();
     private final UUIDMap<VaultGroup> _groups = new UUIDMap<>();
 
+    // Whether we've migrated the group list to the new format while parsing the vault
+    private boolean _isGroupsMigrationFresh = false;
+
     public JSONObject toJson() {
         return toJson(null);
     }
@@ -70,7 +73,9 @@ public class Vault {
             JSONArray array = obj.getJSONArray("entries");
             for (int i = 0; i < array.length(); i++) {
                 VaultEntry entry = VaultEntry.fromJson(array.getJSONObject(i));
-                vault.migrateOldGroup(entry);
+                if (vault.migrateOldGroup(entry)) {
+                    vault.setGroupsMigrationFresh();
+                }
 
                 // check the vault has a group corresponding to each one the entry claims to be in
                 for (UUID groupUuid: entry.getGroups()) {
@@ -88,7 +93,15 @@ public class Vault {
         return vault;
     }
 
-    public void migrateOldGroup(VaultEntry entry) {
+    private void setGroupsMigrationFresh() {
+        _isGroupsMigrationFresh = true;
+    }
+
+    public boolean isGroupsMigrationFresh() {
+        return _isGroupsMigrationFresh;
+    }
+
+    public boolean migrateOldGroup(VaultEntry entry) {
         if (entry.getOldGroup() != null) {
             Optional<VaultGroup> optGroup = getGroups().getValues()
                                                  .stream()
@@ -104,7 +117,10 @@ public class Vault {
             }
 
             entry.setOldGroup(null);
+            return true;
         }
+
+        return false;
     }
 
     public UUIDMap<VaultEntry> getEntries() {

app/src/main/java/com/beemdevelopment/aegis/vault/VaultRepository.java

@@ -314,6 +314,10 @@ public class VaultRepository {
                 .collect(Collectors.toList());
     }
 
+    public boolean isGroupsMigrationFresh() {
+        return _vault.isGroupsMigrationFresh();
+    }
+
     public VaultFileCredentials getCredentials() {
         return _creds == null ? null : _creds.clone();
     }