Structure replies to issues as replies so that their posts don't appear so unusual.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4443 ed5197a5-7fde-0310-b194-c3ffbd925b24

apps/issues/script.js

@@ -154,7 +154,7 @@ class TfIssuesAppElement extends LitElement {
 				<td style="max-width: 40em; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; cursor: pointer" @click=${() => this.selected = issue}>
 					${issue.text.split('\n')?.[0]}
 				</td>
-				<td>${new Date(issue.created).toLocaleDateString()}</td>
+				<td>${new Date(issue.updated ?? issue.created).toLocaleDateString()}</td>
 			</tr>
 		`;
 	}
@@ -206,6 +206,8 @@ class TfIssuesAppElement extends LitElement {
 		await tfrpc.rpc.appendMessage(whoami, {
 			type: 'post',
 			text: event.detail.value,
+			root: this.selected.id,
+			branch: this.selected.updates.length ? this.selected.updates[this.selected.updates.length - 1].id : this.selected.id,
 			issues: [
 				{
 					link: this.selected.id,