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      <div class="chatlog__message-aside"><img class="chatlog__avatar" src="https://cdn.discordapp.com/avatars/293624673265123328/accd07acc220a18568ba46a6e9ede18a.png?size=512" alt="Avatar" loading="lazy"></div>
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        <div class="chatlog__header"><span class="chatlog__author" style="color:rgb(17,128,106)" title="koher" data-user-id="293624673265123328">koher</span> <a href="/channels/306995750418513920?category=main&amp;channel=swift-2&amp;message_id=1329792591751024743"><span class="chatlog__timestamp" title="Friday, January 17, 2025 12:41 PM"></span></a><a href="#chatlog__message-container-1329792591751024743">1/17/2025 12:41 PM</a></div>
        <div class="chatlog__content chatlog__markdown"><span class="chatlog__markdown-preserve"><code class="chatlog__markdown-pre chatlog__markdown-pre--multiline language-swift">import SwiftData @Model final class Item { var foo: Foo init(foo: Foo) { self.foo = foo } } struct Foo: Sendable, Codable { var value: Int? }</code> これを <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">item.foo.value</code> が <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">nil</code> の <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">Item</code> を <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">modelContext.insert(newItem)</code> してから <code class="chatlog__markdown-pre chatlog__markdown-pre--inline">modelContext.save()</code> するとクラッシュするんですが、これはバグでしょうか？</span></div>
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