NPE in ShareActivity when going back
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
at org.briarproject.android.sharing.ShareActivity.getContactsFromIntegers(ShareActivity.java:85)
at org.briarproject.android.sharing.ContactSelectorFragment.onCreateView(ContactSelectorFragment.java:125)
at android.support.v4.app.Fragment.performCreateView(Fragment.java:1974)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1067)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1252)
at android.support.v4.app.BackStackRecord.popFromBackStack(BackStackRecord.java:971)
at android.support.v4.app.FragmentManagerImpl.popBackStackState(FragmentManager.java:1670)
at android.support.v4.app.FragmentManagerImpl.popBackStackImmediate(FragmentManager.java:586)
at android.support.v4.app.FragmentActivity.onBackPressed(FragmentActivity.java:189)
at org.briarproject.android.sharing.ShareMessageFragment.onOptionsItemSelected(ShareMessageFragment.java:100)
at org.briarproject.android.sharing.ShareForumMessageFragment.onOptionsItemSelected(ShareForumMessageFragment.java:23)