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java.lang.NullPointerException: 	at org.kxml2.io.KXmlSerializer.attribute(KXmlSerializer.java:463)	at net.osmand.plus.osmedit.OpenstreetmapRemoteUtil.openChangeSet(OpenstreetmapRemoteUtil.java:183)	at net.osmand.plus.osmedit.OpenstreetmapRemoteUtil.commitNodeImpl(OpenstreetmapRemoteUtil.java:252)	at net.osmand.plus.osmedit.UploadOpenstreetmapPointAsyncTask.doInBackground(UploadOpenstreetmapPointAsyncTask.java:58)	at net.osmand.plus.osmedit.UploadOpenstreetmapPointAsyncTask.doInBackground(UploadOpenstreetmapPointAsyncTask.java:15)	at android.os.AsyncTask$2.call(AsyncTask.java:287)	at java.util.concurrent.FutureTask.run(FutureTask.java:234)	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)	at java.lang.Thread.run(Thread.java:841)