Fix Passing a PGP message via KToolInvocation::invokeMailer() it will not show up in the composer

BUG: 332368
FIXED-IN: 5.19.2

mimetreeparser/src/cryptohelper.cpp

@@ -13,7 +13,9 @@ using namespace MimeTreeParser;
 PGPBlockType Block::determineType() const
 {
     const QByteArray data = text();
-    if (data.startsWith("-----BEGIN PGP SIGNED")) {
+    if (data.startsWith("-----BEGIN PGP PUBLIC KEY BLOCK-----")) {
+        return NoPgpBlock;
+    } else if (data.startsWith("-----BEGIN PGP SIGNED")) {
         return ClearsignedBlock;
     } else if (data.startsWith("-----BEGIN PGP SIGNATURE")) {
         return SignatureBlock;
@@ -47,6 +49,9 @@ QVector<Block> MimeTreeParser::prepareMessageForDecryption(const QByteArray &msg
     if (msg.isEmpty()) {
         return blocks;
     }
+    if (msg.startsWith("-----BEGIN PGP PUBLIC KEY BLOCK-----")) {
+        return blocks;
+    }
 
     if (msg.startsWith("-----BEGIN PGP ")) {
         start = 0;

[Rolf Eike Beer]

Are you sure this is correct? There is an explicit PublicKeyBlock just a few lines below.