Try to fix updates tts files issue.

OsmAnd/src/net/osmand/plus/download/DownloadIndexesThread.java

@@ -551,7 +551,17 @@ public class DownloadIndexesThread {
 						!date.equals(indexactivateddate) &&
 						!date.equals(indexfilesdate) &&
 						indexActivatedFileNames.containsKey(sfName)) {
-					itemsToUpdate.add(item);
+					if (item.getType() == DownloadActivityType.NORMAL_FILE){
+						itemsToUpdate.add(item);
+					} else {
+						long itemSize = item.getSize();
+						File file = new File(((DownloadOsmandIndexesHelper.AssetIndexItem) item).getDestFile());
+						long oldItemSize = file.length();
+						if (itemSize != oldItemSize){
+							itemsToUpdate.add(item);
+						}
+					}
+
 				}
 			}
 			if (uiActivity != null){

OsmAnd/src/net/osmand/plus/download/DownloadOsmandIndexesHelper.java

@@ -165,6 +165,10 @@ public class DownloadOsmandIndexesHelper {
 			res.add(new DownloadEntry(this, assetName, destFile, dateModified));
 			return res;
 		}
+
+		public String getDestFile(){
+			return destFile;
+		}
 	}
 	
 	

OsmAnd/src/net/osmand/plus/download/IndexItem.java

@@ -57,6 +57,9 @@ public class IndexItem implements Comparable<IndexItem> {
 		return timestamp;
 	}
 	
+	public long getSize(){
+		return containerSize;
+	}
 
 	public String getSizeDescription(Context ctx) {
 		return size + " MB";