Sidebar: Don't save a session while session restore is running

BUG:459108

apps/lib/katemdi.cpp

@@ -1204,6 +1204,11 @@ void Sidebar::restoreSession(KConfigGroup &config)
 
 void Sidebar::saveSession(KConfigGroup &config)
 {
+    // Don't try to save a session while we are still in "session restore mode" BUG:459108
+    if (m_sessionRestoreRunning) {
+        return;
+    }
+
     config.writeEntry(QStringLiteral("Kate-MDI-Sidebar-%1-Splitter").arg(position()), sizes());
     config.writeEntry(QStringLiteral("Kate-MDI-Sidebar-%1-LastSize").arg(position()), m_lastSize);
 

apps/lib/katemdi.h

@@ -385,6 +385,7 @@ private:
     // Session restore only
     std::map<QString, int> m_tvIdToTabId;
     std::map<QString, int> m_tvIdToTabBar;
+    bool m_sessionRestoreRunning = false;
 
     int m_lastSize;
     int m_popupButton = 0;