Don't export "account name" when we export filter as sieve script.

Bug found by andris

src/filter/filteractions/filteractionmove.cpp

@@ -60,7 +60,7 @@ QString FilterActionMove::sieveCode() const
 {
     QString path;
     if (KernelIf->collectionModel()) {
-        path = MailCommon::Util::fullCollectionPath(mFolder);
+        path = MailCommon::Util::fullCollectionPath(mFolder, false);
     } else {
         path = QString::number(mFolder.id());
     }

src/util/mailutil.cpp

@@ -103,7 +103,7 @@ bool MailCommon::Util::isLocalCollection(const QString &resource)
            || resource.contains(QStringLiteral("akonadi_mixedmaildir_resource"));
 }
 
-QString MailCommon::Util::fullCollectionPath(const Akonadi::Collection &collection)
+QString MailCommon::Util::fullCollectionPath(const Akonadi::Collection &collection, bool addAccountName)
 {
     QString fullPath;
 
@@ -116,8 +116,18 @@ QString MailCommon::Util::fullCollectionPath(const Akonadi::Collection &collecti
     fullPath = idx.data().toString();
     idx = idx.parent();
     while (idx != QModelIndex()) {
-        fullPath = idx.data().toString() + QLatin1Char('/') + fullPath;
+        const QString tmp = idx.data().toString() + QLatin1Char('/') + fullPath;
         idx = idx.parent();
+        if (idx != QModelIndex()) {
+            fullPath = tmp;
+        } else {
+            if (!addAccountName) {
+                break;
+            } else {
+                fullPath = tmp;
+                break;
+            }
+        }
     }
     return fullPath;
 }

src/util/mailutil.h

@@ -68,7 +68,7 @@ MAILCOMMON_EXPORT bool isVirtualCollection(const Akonadi::Collection &col);
 
 MAILCOMMON_EXPORT bool isVirtualCollection(const QString &resource);
 
-MAILCOMMON_EXPORT QString fullCollectionPath(const Akonadi::Collection &collection);
+MAILCOMMON_EXPORT QString fullCollectionPath(const Akonadi::Collection &collection, bool addAccountName = true);
 
 MAILCOMMON_EXPORT bool showJobErrorMessage(KJob *job);