fix(federation): Change the Talk-Hash header when overwriting capabil…

[nickvergessen]

…ities

☑️ Resolves

• Fix Overwriting capability setting does not invalide proxy hash #11865

🛠️ API Checklist

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not possible
• 📘 API documentation in docs/ has been updated or is not required
• 🔖 Capability is added or not needed

[SystemKeeper]

Why not doing the hash calculation at

spreed/lib/Controller/RoomController.php

Lines 2276 to 2278 in 455231a

	if ($response->getHeaders()['X-Nextcloud-Talk-Hash']) {
	$headers['X-Nextcloud-Talk-Proxy-Hash'] = $response->getHeaders()['X-Nextcloud-Talk-Hash'];
	}

?

Also, wouldn't it be more clear if we create an array with our changes (much like in overwrittenRemoteTalkHash) and then use the array for the hash update and use array_merge for the resulting capabilities ?

[nickvergessen]

Because we also deal with the hash in 2 other places and it sounds to risky to rehash in x places