sender-key: credit original fix and fix key handling

src/Socket/messages-recv.ts

@@ -1120,7 +1120,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		if (getBinaryNodeChild(node, 'unavailable') && !encNode) {
 			await sendMessageAck(node)
 			const { key } = decodeMessageNode(node, authState.creds.me!.id, authState.creds.me!.lid || '').fullMessage
-			response = await requestPlaceholderResend(key)
+			response = await requestPlaceholderResend(key) // TODO: DEPRECATE THIS LOGIC AND PASS IT OFF TO THE RETRY MANAGER
 			if (response === 'RESOLVED') {
 				return
 			}