More crash fixes

mastodon/build.gradle

@@ -14,7 +14,7 @@ android {
 		minSdk 23
 		targetSdk 33
 		versionCode 104
-		versionName "2.5.2"
+		versionName "2.5.3"
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 	}
 

mastodon/src/main/java/org/joinmastodon/android/fragments/onboarding/InstanceCatalogSignupFragment.java

@@ -144,6 +144,7 @@ public class InstanceCatalogSignupFragment extends InstanceCatalogFragment{
 
 	@Override
 	public void onDestroy(){
+		removeBackCallback(exitQueryModeCallback);
 		super.onDestroy();
 	}
 

mastodon/src/main/java/org/joinmastodon/android/fragments/onboarding/InstanceChooserLoginFragment.java

@@ -100,6 +100,8 @@ public class InstanceChooserLoginFragment extends InstanceCatalogFragment{
 				.setCallback(new Callback<>(){
 					@Override
 					public void onSuccess(List<CatalogInstance> result){
+						if(getActivity()==null)
+							return;
 						data.clear();
 						data.addAll(sortInstances(result));
 						updateFilteredList();

mastodon/src/main/java/org/joinmastodon/android/fragments/settings/EditFilterFragment.java

@@ -97,6 +97,12 @@ public class EditFilterFragment extends BaseSettingsFragment<Void>{
 		setRetainInstance(true);
 	}
 
+	@Override
+	public void onDestroy(){
+		removeBackCallback(confirmCallback);
+		super.onDestroy();
+	}
+
 	@Override
 	protected void doLoadData(int offset, int count){}