Fix Prerequisites comparison in SplitManagerImplTest

Changed from comparing object references (which failed with different instances)
to comparing actual field values (featureFlagName and treatments).

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

AI-Session-Id: c83b3557-2c02-4d13-aaa4-273b7340163d
AI-Tool: claude-code
AI-Model: unknown

Author: gthea

client/src/test/java/io/split/client/SplitManagerImplTest.java

@@ -88,7 +88,9 @@ public void splitCallWithExistentSplit() {
         Assert.assertEquals("off", theOne.treatments.get(0));
         Assert.assertEquals(0, theOne.configs.size());
         Assert.assertEquals("off", theOne.defaultTreatment);
-        Assert.assertEquals(Lists.newArrayList(prereq), theOne.prerequisites);
+        Assert.assertEquals(1, theOne.prerequisites.size());
+        Assert.assertEquals(prereq.featureFlagName, theOne.prerequisites.get(0).featureFlagName);
+        Assert.assertEquals(prereq.treatments, theOne.prerequisites.get(0).treatments);
     }
 
     @Test