fix: errant mention detection via actors.note

- also removed duplicate parsing of post content when retrieving object via AP

src/activitypub/mocks.js

@@ -349,7 +349,7 @@ Mocks.notes.public = async (post) => {
 	}
 	if (mentionsEnabled) {
 		const mentions = require.main.require('nodebb-plugin-mentions');
-		const matches = await mentions.getMatches(post.content);
+		const matches = await mentions.getMatches(content);
 
 		if (matches.size) {
 			tag = tag || [];

src/controllers/activitypub/actors.js

@@ -69,7 +69,7 @@ Actors.note = async function (req, res) {
 	}
 
 	const post = (await posts.getPostSummaryByPids([req.params.pid], req.uid, {
-		stripTags: false,
+		parse: false,
 		extraFields: ['edited'],
 	})).pop();
 	if (!post) {