fix for getting gene ID

uk/ac/sanger/artemis/io/GFFStreamFeature.java

@@ -429,7 +429,7 @@ public class GFFStreamFeature extends SimpleDocumentFeature implements
    * @return
    */
   public String getSegmentID(final Range r) {
-    if (id_range_store != null) {
+    if (id_range_store != null && !getKey().getKeyString().equals("gene")) {
       int offset = 0;
       if (getGffSeqName() != null && contig_ranges != null
           && contig_ranges.containsKey(getGffSeqName())) {