Fail-safe

app/src/main/java/eu/faircode/email/FragmentCompose.java

@@ -803,6 +803,7 @@ public class FragmentCompose extends FragmentBase {
                 Collections.sort(items, new Comparator<EntityContact>() {
                     @Override
                     public int compare(EntityContact i1, EntityContact i2) {
+                        try {
                             if (suggest_frequently) {
                                 int t = -i1.times_contacted.compareTo(i2.times_contacted);
                                 if (t != 0)
@@ -829,6 +830,10 @@ public class FragmentCompose extends FragmentBase {
                                 return n;
 
                             return collator.compare(i1.email, i2.email);
+                        } catch (Throwable ex) {
+                            Log.e(ex);
+                            return 0;
+                        }
                     }
                 });