Support fancier epilogues in diagnostics

1 files changed, 4 insertions, 5 deletions

diff --git a/butl/diagnostics b/butl/diagnostics
index 694fae7..56219ce 100644
--- a/butl/diagnostics
+++ b/butl/diagnostics
@@ -71,14 +71,13 @@ namespace butl
     void
     append (diag_epilogue* e) const
     {
-      if (e != nullptr)
+      // Ignore subsequent epilogues (e.g., from nested marks, etc).
+      //
+      if (empty_)
       {
-        assert (epilogue_ == nullptr); // No multiple epilogues support.
         epilogue_ = e;
-      }
-
-      if (empty_)
         empty_ = false;
+      }
       else
         os << "\n  ";
     }