Fixed importImage returning Image ID instead of Pixel ID.

Author: ppouchin

src/main/java/fr/igred/omero/annotations/TableWrapper.java

@@ -214,7 +214,6 @@ private static ROIData[] createROIColumn(ResultsTable results,
             }
         }
 
-
         String[] headings = results.getHeadings();
 
         if (results.columnExists("ROI")) {

src/main/java/fr/igred/omero/repository/DatasetWrapper.java

@@ -52,6 +52,7 @@
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.stream.Collectors;
 
 import static fr.igred.omero.exception.ExceptionHandler.handleServiceOrAccess;
 
@@ -489,8 +490,8 @@ public List<Long> importImage(Client client, String path) throws Exception {
         refresh(client);
 
         List<Long> ids = new ArrayList<>(pixels.size());
-        pixels.forEach(pix -> ids.add(pix.getId().getValue()));
-        return ids;
+        pixels.forEach(pix -> ids.add(pix.getImage().getId().getValue()));
+        return ids.stream().distinct().collect(Collectors.toList());
     }