disable exit transition until we have a fix for it

briar-android/src/org/briarproject/android/contact/ContactListFragment.java

@@ -1,7 +1,6 @@
 package org.briarproject.android.contact;
 
 import android.content.Intent;
-import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.design.widget.FloatingActionButton;
@@ -51,6 +50,7 @@ import java.util.logging.Logger;
 
 import javax.inject.Inject;
 
+import static android.support.v4.app.ActivityOptionsCompat.makeSceneTransitionAnimation;
 import static java.util.logging.Level.INFO;
 import static java.util.logging.Level.WARNING;
 import static org.briarproject.android.BriarActivity.GROUP_ID;
@@ -122,10 +122,8 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 								Pair.create((View) holder.bulb, ViewCompat
 										.getTransitionName(holder.bulb));
 						ActivityOptionsCompat options =
-								ActivityOptionsCompat
-										.makeSceneTransitionAnimation(
-												getActivity(), avatar,
-												bulb);
+								makeSceneTransitionAnimation(getActivity(),
+										avatar, bulb);
 						ActivityCompat.startActivity(getActivity(), i,
 								options.toBundle());
 					}

briar-android/src/org/briarproject/android/contact/ConversationActivity.java

@@ -212,7 +212,7 @@ public class ConversationActivity extends BriarActivity
 		// Handle presses on the action bar items
 		switch (item.getItemId()) {
 			case android.R.id.home:
-				supportFinishAfterTransition();
+				onBackPressed();
 				return true;
 			case R.id.action_introduction:
 				if (contactId == null) return false;
@@ -232,6 +232,13 @@ public class ConversationActivity extends BriarActivity
 		}
 	}
 
+	@Override
+	public void onBackPressed() {
+		// FIXME disabled exit transition, because it doesn't work for some reason
+		//supportFinishAfterTransition();
+		finish();
+	}
+
 	private void loadData() {
 		runOnDbThread(new Runnable() {
 			@Override