Index: trunk/src/org/openstreetmap/josm/data/imagery/ImageryInfo.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/imagery/ImageryInfo.java	(revision 4193)
+++ trunk/src/org/openstreetmap/josm/data/imagery/ImageryInfo.java	(revision 4194)
@@ -173,4 +173,6 @@
         CheckParameterUtil.ensureParameterNotNull(url);
         
+        defaultMaxZoom = 0;
+        defaultMinZoom = 0;
         for (ImageryType type : ImageryType.values()) {
             Matcher m = Pattern.compile(type.getUrlString()+"(?:\\[(?:(\\d+),)?(\\d+)\\])?:(.*)").matcher(url);