[IB2-340] Fixed the App hanging when pressing done button after switc…

…hing to/from Forget mode

Client/Frontend/Browser/BrowserTrayAnimators.swift

@@ -247,7 +247,7 @@ private func headerTransform(_ frame: CGRect, toFrame finalFrame: CGRect, contai
 
 //MARK: Private Helper Methods
 private func calculateCollapsedCellFrameUsingCollectionView(_ collectionView: UICollectionView, atIndex index: Int) -> CGRect {
-    // Cliqz: added check to prevent charing the app when clicking does after swtiching forget mode state
+    // Cliqz: added check to prevent crashing the app when clicking done button after swtiching forget mode state
     guard collectionView.numberOfItems(inSection: 0) > index else { return .zero}
 
     if let attr = collectionView.collectionViewLayout.layoutAttributesForItem(at: IndexPath(item: index, section: 0)) {

Client/Frontend/Browser/TabManager.swift

@@ -213,6 +213,8 @@ class TabManager: NSObject {
     func willSwitchTabMode(leavingPBM: Bool) {
         if shouldClearPrivateTabs() && leavingPBM {
             removeAllPrivateTabs()
+            // Cliqz: [IB2-340] Fixed the App hanging when pressing done button after switching to/from Forget mode
+            selectTab(self.tabs.first)
         }
     }