lib: return "" rather than NULL from notmuch_thread_get_authors

[notmuch] / lib / thread.cc

diff --git a/lib/thread.cc b/lib/thread.cc
index 1632da4cd0f4f9398e774b8157004e89914485d9..3561b27f743976d2c2d1918d33fc2a8d33469c74 100644 (file)
--- a/lib/thread.cc
+++ b/lib/thread.cc
@@ -160,6 +160,9 @@ _resolve_thread_authors_string (notmuch_thread_t *thread)
     thread->authors_array = NULL;
     g_ptr_array_free (thread->matched_authors_array, true);
     thread->matched_authors_array = NULL;
+
+    if (!thread->authors)
+       thread->authors = talloc_strdup(thread, "");
 }
 
 /* clean up the ugly "Lastname, Firstname" format that some mail systems