[pim/messagelib] messagecomposer/src/attachment: Fix show error message. When we cancel it's not a problem about attachment file

Git commit 8760e0f1f7919c12b3426ab41d2af66faff18836 by Laurent Montel.
Committed on 15/08/2026 at 06:10.
Pushed by mlaurent into branch 'master'.

Fix show error message. When we cancel it's not a problem about attachment file

M  +4    -2    messagecomposer/src/attachment/attachmentcontrollerbase.cpp

https://invent.kde.org/pim/messagelib/-/commit/8760e0f1f7919c12b3426ab41d2af66faff18836

diff --git a/messagecomposer/src/attachment/attachmentcontrollerbase.cpp b/messagecomposer/src/attachment/attachmentcontrollerbase.cpp
index 3972eb262..b0a9deaa7 100644
--- a/messagecomposer/src/attachment/attachmentcontrollerbase.cpp
+++ b/messagecomposer/src/attachment/attachmentcontrollerbase.cpp
@@ -711,8 +711,10 @@ void AttachmentControllerBase::openAttachment(const AttachmentPart::Ptr &part)
     job->setUiDelegate(KIO::createDefaultJobUiDelegate(KJobUiDelegate::AutoHandlingEnabled, d->wParent));
     job->setDeleteTemporaryFile(true);
     connect(job, &KIO::OpenUrlJob::result, this, [this, tempFile](KJob *job) {
-        if (job->error() == KIO::ERR_USER_CANCELED) {
-            KMessageBox::error(d->wParent, job->errorString(), i18n("KMail was unable to open the attachment"));
+        if (job->error()) {
+            if (job->error() != KIO::ERR_USER_CANCELED) {
+                KMessageBox::error(d->wParent, job->errorString(), i18nc("@title:window", "Unable to open attachment"));
+            }
             delete tempFile;
         } else {
             // The file was opened.  Delete it only when the composer is closed