Add a reproduction of #1575

src/test/java/com/fasterxml/jackson/failing/JsonIgnoreProperties1575Test.java

@@ -0,0 +1,45 @@
+package com.fasterxml.jackson.failing;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import com.fasterxml.jackson.databind.*;
+
+public class JsonIgnoreProperties1575Test extends BaseMapTest
+{
+    static class Person {
+        public String name;
+
+        @JsonProperty("person_z") // renaming this to person_p works
+        @JsonIgnoreProperties({"person_z"}) // renaming this to person_p works
+//        public Set<Person> personZ;
+        public Person personZ;
+    }
+
+    public void testIgnorePropDeser1575() throws Exception
+    {
+        String st = aposToQuotes("{ 'name': 'admin',\n"
+//                + "    'person_z': [ { 'name': 'admin' } ]"
+              + "    'person_z': { 'name': 'admin' }"
+                + "}");
+
+        ObjectMapper mapper = new ObjectMapper();
+        Person result = mapper.readValue(st, Person.class);
+        assertEquals("admin", result.name);
+    }
+
+    /*
+    public void testIgnorePropSer1575() throws Exception
+    {
+        ObjectMapper mapper = new ObjectMapper();
+        Person input = new Person();
+        input.name = "Bob";
+
+        // 24-Mar-2017, tatu: This shouldn't cause issues... but does as of now:
+        
+//        input.personZ = input;
+        String json = mapper.writeValueAsString(input);
+        assertNotNull(json);
+    }
+    */
+}