force advanced MFM in posting form preview

packages/client/src/components/MkNotePreview.vue

@@ -7,7 +7,12 @@
 			</div>
 			<div class="body">
 				<div class="content">
-					<Mfm :text="preprocess(text).trim()" :author="$i" :i="$i" />
+					<Mfm 
+						:text="preprocess(text).trim()"
+						:author="$i"
+						:i="$i"
+						advancedMfm
+					/>
 				</div>
 			</div>
 		</div>

packages/client/src/components/global/MkMisskeyFlavoredMarkdown.vue

@@ -9,7 +9,7 @@
 		class="mfm-object"
 		:class="{
 			nowrap,
-			advancedMfm: defaultStore.state.advancedMfm,
+			advancedMfm: defaultStore.state.advancedMfm || advancedMfm,
 		}"
 	/>
 </template>
@@ -27,6 +27,7 @@ const props = withDefaults(
 		author?: any;
 		customEmojis?: any;
 		isNote?: boolean;
+		advancedMfm: boolean;
 	}>(),
 	{
 		plain: false,