PropertyName equals match similar name if only first letter differs

implementation/src/main/java/io/smallrye/config/PropertyName.java

@@ -135,7 +135,7 @@ private static boolean equalsInternal(final String name, final int offset, final
             }
             matchPosition--;
         }
-        return matchPosition <= offset;
+        return matchPosition < offset;
     }
 
     @Override

implementation/src/test/java/io/smallrye/config/PropertyNameTest.java

@@ -2,6 +2,7 @@
 
 import static io.smallrye.config.PropertyName.name;
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
@@ -64,4 +65,12 @@ void propertyNameEqualsRegions() {
         assertTrue(PropertyName.equals("foo.bar", 4, 3, "bar", 0, 3));
         assertTrue(PropertyName.equals("foo.\"bar\".baz", 4, 5, "*", 0, 1));
     }
+
+    @Test
+    void simpleNames() {
+        assertFalse(PropertyName.equals("sync", "async"));
+        assertFalse(PropertyName.equals("async", "sync"));
+        assertFalse(PropertyName.equals("async-client", "sync-client"));
+        assertFalse(PropertyName.equals("sync-client", "async-client"));
+    }
 }