Index: /trunk/src/org/openstreetmap/josm/actions/search/SearchCompiler.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/actions/search/SearchCompiler.java	(revision 8846)
+++ /trunk/src/org/openstreetmap/josm/actions/search/SearchCompiler.java	(revision 8847)
@@ -625,4 +625,7 @@
                 v = Double.valueOf(referenceValue);
             } catch (NumberFormatException ignore) {
+                if (Main.isTraceEnabled()) {
+                    Main.trace(ignore.getMessage());
+                }
             }
             this.referenceNumber = v;