commit d55dc6bd7f2da9245884f86706cb96e2d11fa83a
Author: Benjamin Lorenz <lorenz@math.tu-berlin.de>
Date:   Tue Nov 7 16:49:33 2023 +0100

    barycentric_subdivision: dont call back on empty strings
    
    thanks jamesjer
    
    @Jenkins: merge

diff --git a/apps/topaz/src/barycentric_subdivision.cc b/apps/topaz/src/barycentric_subdivision.cc
index 753afb4040..e2d4130bc3 100644
--- a/apps/topaz/src/barycentric_subdivision.cc
+++ b/apps/topaz/src/barycentric_subdivision.cc
@@ -139,7 +139,7 @@ bs_data2Object(const bool realize,
    else
       desc << k << "th ";
    desc << "barycentric subdivision of " << description;
-   if (description.back() != '\n')
+   if (description.empty() || description.back() != '\n')
       desc << endl;
    p_out.set_description() << desc.str();
    return p_out;