Time estimation: Avoid a progress reset before finish. owncloud#2328

The current algorithm doesn't care much, but resetting progress
to 0 just before completing a job is confusing anyway.

src/libsync/propagateupload.cpp

@@ -635,9 +635,14 @@ void PropagateUploadFileQNAM::finalize(const SyncFileItem &copy)
 
 void PropagateUploadFileQNAM::slotUploadProgress(qint64 sent, qint64 total)
 {
+    // Completion is signaled with sent=0, total=0; avoid accidentally
+    // resetting progress due to the sent being zero by ignoring it.
+    // finishedSignal() is bound to be emitted soon anyway.
+    // See https://bugreports.qt.io/browse/QTBUG-44782.
     if (sent == 0 && total == 0) {
-        return; // QNAM bug https://bugreports.qt.io/browse/QTBUG-44782
+        return;
     }
+
     int progressChunk = _currentChunk + _startChunk - 1;
     if (progressChunk >= _chunkCount)
         progressChunk = _currentChunk - 1;

src/libsync/propagateupload.h

@@ -87,7 +87,7 @@ class PUTFileJob : public AbstractNetworkJob {
 
     QString errorString() {
         return _errorString.isEmpty() ? reply()->errorString() : _errorString;
-    };
+    }
 
     virtual void slotTimeout() Q_DECL_OVERRIDE;