BraggPrediction: Zeta set to 1.0 for stills, otherwise merging gets weird

image_analysis/bragg_prediction/BraggPrediction.cpp

@@ -103,7 +103,7 @@ int BraggPrediction::Calc(const DiffractionExperiment &experiment, const Crystal
                         .dist_ewald = dist_ewald_sphere,
                         .rlp = 1.0,
                         .partiality = 1.0,
-                        .zeta = NAN
+                        .zeta = 1.0
                     };
                     ++i;
                 }

image_analysis/bragg_prediction/BraggPredictionGPU.cu

@@ -84,7 +84,7 @@ namespace {
         out.dist_ewald = dist_ewald;
         out.rlp = 1.0f;
         out.partiality = 1.0f;
-        out.zeta = NAN;
+        out.zeta = 1.0f;
         return true;
     }