Index: trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java	(revision 17763)
+++ trunk/test/unit/org/openstreetmap/josm/data/validation/tests/TagCheckerTest.java	(revision 17766)
@@ -383,3 +383,11 @@
         assertFalse(TagChecker.containsUnusualUnicodeCharacter("name:kbp", "Kalɩfɔrnii"));
     }
+
+    /**
+     * Non-regression test for <a href="https://josm.openstreetmap.de/ticket/20754">Bug #20754</a>.
+     */
+    @Test
+    void testTicket20754() {
+        assertFalse(TagChecker.containsUnusualUnicodeCharacter("name", "Yuułuʔiłʔatḥ Lands"));
+    }
 }