Index: trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java	(revision 8459)
+++ trunk/test/unit/org/openstreetmap/josm/tools/TextTagParserTest.java	(revision 8482)
@@ -95,3 +95,11 @@
 
     }
+
+    @Test
+    public void testTab() throws Exception {
+        Assert.assertEquals(TextTagParser.readTagsFromText("shop\tjewelry"), Collections.singletonMap("shop", "jewelry"));
+        Assert.assertEquals(TextTagParser.readTagsFromText("!shop\tjewelry"), Collections.singletonMap("shop", "jewelry"));
+        Assert.assertEquals(TextTagParser.readTagsFromText("!!!shop\tjewelry"), Collections.singletonMap("shop", "jewelry"));
+        Assert.assertEquals(TextTagParser.readTagsFromText("shop\t\t\tjewelry"), Collections.singletonMap("shop", "jewelry"));
+    }
 }