Merge pull request #290 from thefex/backstack_flag_not_respected_if_cache_is_empty_issuefix

Issue #289 back stack fix

Author: martijn00

MvvmCross.Droid.Support.V4/MvxCachingFragmentActivity.cs

@@ -258,6 +258,7 @@ protected virtual void ShowFragment(string tag, int contentId, Bundle bundle, bo
 				//Otherwise, create one and cache it
 				fragInfo.CachedFragment = Fragment.Instantiate(this, FragmentJavaName(fragInfo.FragmentType),
 					bundle) as IMvxFragmentView;
+                currentFragment = fragInfo.CachedFragment as Fragment;
 				OnFragmentCreated(fragInfo, ft);
 			}
 

MvvmCross.Droid.Support.V7.AppCompat/MvxCachingFragmentCompatActivity.cs

@@ -216,7 +216,8 @@ protected virtual void ShowFragment(string tag, int contentId, Bundle bundle, bo
 				//Otherwise, create one and cache it
 				fragInfo.CachedFragment = Fragment.Instantiate(this, FragmentJavaName(fragInfo.FragmentType),
 					bundle) as IMvxFragmentView;
-				OnFragmentCreated(fragInfo, ft);
+                currentFragment = fragInfo.CachedFragment as Fragment;
+                OnFragmentCreated(fragInfo, ft);
 			}
 
 			ft.Replace(fragInfo.ContentId, fragInfo.CachedFragment as Fragment, fragInfo.Tag);