Crash fixes

mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java

@@ -609,6 +609,7 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 					@Override
 					public void onSuccess(Status result){
 						wm.removeView(sendingOverlay);
+						sendingOverlay=null;
 						Nav.finish(ComposeFragment.this);
 						E.post(new StatusCreatedEvent(result));
 						if(replyTo!=null){
@@ -620,6 +621,7 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 					@Override
 					public void onError(ErrorResponse error){
 						wm.removeView(sendingOverlay);
+						sendingOverlay=null;
 						sendProgress.setVisibility(View.GONE);
 						sendError.setVisibility(View.VISIBLE);
 						publishButton.setEnabled(true);
@@ -647,6 +649,8 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 			confirmDiscardDraftAndFinish();
 			return true;
 		}
+		if(sendingOverlay!=null)
+			return true;
 		return false;
 	}
 

mastodon/src/main/java/org/joinmastodon/android/fragments/ProfileFragment.java

@@ -128,6 +128,7 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	private View fab;
 	private WindowInsets childInsets;
 	private PhotoViewer currentPhotoViewer;
+	private boolean editModeLoading;
 
 	public ProfileFragment(){
 		super(R.layout.loader_fragment_overlay_toolbar);
@@ -664,17 +665,26 @@ public class ProfileFragment extends LoaderFragment implements OnBackPressedList
 	}
 
 	private void loadAccountInfoAndEnterEditMode(){
+		if(editModeLoading)
+			return;
+		editModeLoading=true;
 		setActionProgressVisible(true);
 		new GetOwnAccount()
 				.setCallback(new Callback<>(){
 					@Override
 					public void onSuccess(Account result){
+						editModeLoading=false;
+						if(getActivity()==null)
+							return;
 						enterEditMode(result);
 						setActionProgressVisible(false);
 					}
 
 					@Override
 					public void onError(ErrorResponse error){
+						editModeLoading=false;
+						if(getActivity()==null)
+							return;
 						error.showToast(getActivity());
 						setActionProgressVisible(false);
 					}

mastodon/src/main/java/org/joinmastodon/android/fragments/ScrollableToTop.java

@@ -13,6 +13,8 @@ public interface ScrollableToTop{
 	 * @param list
 	 */
 	default void smoothScrollRecyclerViewToTop(RecyclerView list){
+		if(list==null) // TODO find out why this happens because it should not be possible
+			return;
 		if(list.getChildCount()>0 && list.getChildAdapterPosition(list.getChildAt(0))>10){
 			list.scrollToPosition(0);
 			list.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener(){

mastodon/src/main/java/org/joinmastodon/android/fragments/discover/SearchFragment.java

@@ -117,6 +117,8 @@ public class SearchFragment extends BaseStatusListFragment<SearchResult>{
 	protected void doLoadData(int offset, int count){
 		if(isInRecentMode()){
 			AccountSessionManager.getInstance().getAccount(accountID).getCacheController().getRecentSearches(sr->{
+				if(getActivity()==null)
+					return;
 				unfilteredResults=sr;
 				prevDisplayItems=new ArrayList<>(displayItems);
 				onDataLoaded(sr, false);