see #23738 comment:26

- make Cancel button work when using "Upload each object individually"

git-svn-id: https://josm.openstreetmap.de/svn/trunk@19127 0c6e7542-c601-0410-84e7-c038aed88b3b

Author: GerdP

src/org/openstreetmap/josm/io/OsmServerWriter.java

@@ -99,6 +99,8 @@ protected void uploadChangesIndividually(Collection<? extends OsmPrimitive> prim
             progressMonitor.setTicksCount(primitives.size());
             uploadStartTime = System.currentTimeMillis();
             for (OsmPrimitive osm : primitives) {
+                if (progressMonitor.isCanceled())
+                    break;
                 String msg;
                 switch (OsmPrimitiveType.from(osm)) {
                 case NODE: msg = marktr("{0}% ({1}/{2}), {3} left. Uploading node ''{4}'' (id: {5})"); break;