Merge pull request #5534 from nextcloud/feature/e2ee-deryption-cut-extra-zeroes

E2EE cut extra zeroes from derypted byte array.

src/libsync/clientsideencryption.cpp

@@ -806,6 +806,9 @@ QByteArray decryptStringAsymmetric(EVP_PKEY *privateKey, const QByteArray& data)
         qCInfo(lcCseDecryption()) << "data decrypted successfully";
     }
 
+    // we don't need extra zeroes in out, so let's only return meaningful data
+    out = QByteArray(out.constData(), outlen);
+
     qCInfo(lcCse()) << out;
     return out;
 }