Added folder modseq

app/src/main/java/eu/faircode/email/DB.java

@@ -65,7 +65,7 @@ import static eu.faircode.email.ServiceAuthenticator.AUTH_TYPE_PASSWORD;
 // https://developer.android.com/topic/libraries/architecture/room.html
 
 @Database(
-        version = 191,
+        version = 192,
         entities = {
                 EntityIdentity.class,
                 EntityAccount.class,
@@ -1967,6 +1967,13 @@ public abstract class DB extends RoomDatabase {
                         Log.i("DB migration from version " + startVersion + " to " + endVersion);
                         db.execSQL("ALTER TABLE `folder` ADD COLUMN `selected_last` INTEGER NOT NULL DEFAULT 0");
                     }
+                })
+                .addMigrations(new Migration(191, 192) {
+                    @Override
+                    public void migrate(@NonNull SupportSQLiteDatabase db) {
+                        Log.i("DB migration from version " + startVersion + " to " + endVersion);
+                        db.execSQL("ALTER TABLE `folder` ADD COLUMN `modseq` INTEGER");
+                    }
                 });
     }
 

app/src/main/java/eu/faircode/email/DaoFolder.java

@@ -344,6 +344,9 @@ public interface DaoFolder {
     @Query("UPDATE folder SET uidv = :uidv WHERE id = :id AND NOT (uidv IS :uidv)")
     int setFolderUidValidity(long id, Long uidv);
 
+    @Query("UPDATE folder SET modseq = :modseq WHERE id = :id AND NOT (modseq IS :modseq)")
+    int setFolderModSeq(long id, Long modseq);
+
     @Query("UPDATE folder SET last_sync = :last_sync WHERE id = :id AND NOT (last_sync IS :last_sync)")
     int setFolderLastSync(long id, long last_sync);
 

app/src/main/java/eu/faircode/email/EntityFolder.java

@@ -71,6 +71,7 @@ public class EntityFolder extends EntityOrder implements Serializable {
     public Long account; // Outbox = null
     public Long parent;
     public Long uidv; // UIDValidity
+    public Long modseq;
     @NonNull
     public String name;
     @NonNull