File pom1 = new File(pom0Basedir, "p1/pom.xml");

        getProjectWithDependencies(pom0);
        MavenProject project1 = getProjectWithDependencies(pom1);

        Map pluginMap = project1.getBuild().getPluginsAsMap();
        Plugin compilerPlugin = (Plugin) pluginMap.get("org.apache.maven.plugins:maven-compiler-plugin");

        assertNotNull(compilerPlugin);

        Map executionMap = compilerPlugin.getExecutionsAsMap();

        build.addPlugin(originalPlugin);

        MavenProject project = new MavenProject(model);

        // The old broken implementation would have done:
        // var plugin = getBuild().getDelegate().getPluginsAsMap().get(pluginKey);
        // return plugin != null ? new Plugin(plugin) : null;
        // This would create a disconnected Plugin that doesn't persist changes.

        // The new fixed implementation does: