From 09f616aae88e1b6646045537470df1d68ddcfdf5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20P=C3=B6hler?= <jonas.poehler@foconis.de>
Date: Thu, 15 Jun 2023 12:03:49 +0200
Subject: [PATCH] ADD: testcase for showing an issue with deleting and
 re-adding many-to-many elements (size > 20)

(cherry picked from commit e6a4bc4e0c31bb35ab5a13c958c7c4b1f68ca037)
---
 .../java/org/tests/m2m/TestM2MModifyTest.java | 26 ++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/ebean-test/src/test/java/org/tests/m2m/TestM2MModifyTest.java b/ebean-test/src/test/java/org/tests/m2m/TestM2MModifyTest.java
index dc31662ab7..ed5a53a944 100644
--- a/ebean-test/src/test/java/org/tests/m2m/TestM2MModifyTest.java
+++ b/ebean-test/src/test/java/org/tests/m2m/TestM2MModifyTest.java
@@ -1,11 +1,12 @@
 package org.tests.m2m;
 
-import io.ebean.xtest.BaseTestCase;
 import io.ebean.DB;
+import io.ebean.xtest.BaseTestCase;
 import org.junit.jupiter.api.Test;
 import org.tests.model.basic.MRole;
 import org.tests.model.basic.MUser;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -52,4 +53,27 @@ public void test() {
     roles = u0.getRoles();
     assertThat(roles).hasSize(1);
   }
+
+  @Test
+  public void test1() {
+    List<MRole> roles = new ArrayList<>();
+    for (int i = 0; i < 56; i++) {
+      MRole r0 = new MRole("mrole" + i);
+      roles.add(r0);
+    }
+
+    DB.saveAll(roles);
+
+    MUser u0 = new MUser("usr0");
+    u0.getRoles().addAll(roles);
+
+    DB.save(u0);
+
+    u0 = DB.find(MUser.class, u0.getUserid());
+
+    u0.getRoles().clear();
+    u0.getRoles().addAll(roles);
+
+    DB.save(u0);
+  }
 }