service/greetd: always send responses

Author: gkleen

changelog/next.md

@@ -13,3 +13,4 @@
 - Fixed build issues preventing cross compilation from working.
 - Fixed dekstop entries with lower priority than a hidden entry not being hidden.
 - Fixed desktop entry keys with mismatched modifier or country not being discarded.
+- Fixed greetd hanging when authenticating with a fingerprint.

src/services/greetd/connection.cpp

@@ -225,6 +225,10 @@ void GreetdConnection::onSocketReady() {
 
 		this->mResponseRequired = responseRequired;
 		emit this->authMessage(message, error, responseRequired, echoResponse);
+
+		if (!responseRequired) {
+			this->sendRequest({{"type", "post_auth_message_response"}});
+		}
 	} else goto unexpected;
 
 	return;