[1D] Set overwrite flag when saving debug output files

This prevents errors that could occur if the steady-state Newton solver
experiences failures after previous successful Newton solves. In this situation,
the data group at the highest level already exists in the debug file, and must
explicitly be overwritten.

src/oneD/Sim1D.cpp

@@ -448,34 +448,34 @@ void Sim1D::solve(int loglevel, bool refine_grid)
 
                 if (loglevel > 6) {
                     save("debug_sim1d.yaml", "debug",
-                         "After successful Newton solve");
+                         "After successful Newton solve", true);
                 }
                 if (loglevel > 7) {
                     saveResidual("debug_sim1d.yaml", "residual",
-                                 "After successful Newton solve");
+                                 "After successful Newton solve", true);
                 }
                 ok = true;
             } else {
                 debuglog("    failure. \n", loglevel);
                 if (loglevel > 6) {
                     save("debug_sim1d.yaml", "debug",
-                         "After unsuccessful Newton solve");
+                         "After unsuccessful Newton solve", true);
                 }
                 if (loglevel > 7) {
                     saveResidual("debug_sim1d.yaml", "residual",
-                                 "After unsuccessful Newton solve");
+                                 "After unsuccessful Newton solve", true);
                 }
                 if (loglevel > 0) {
                     writelog("Take {} timesteps   ", nsteps);
                 }
                 dt = timeStep(nsteps, dt, m_state->data(), m_xnew.data(), loglevel-1);
                 m_xlast_ts = *m_state;
                 if (loglevel > 6) {
-                    save("debug_sim1d.yaml", "debug", "After timestepping");
+                    save("debug_sim1d.yaml", "debug", "After timestepping", true);
                 }
                 if (loglevel > 7) {
                     saveResidual("debug_sim1d.yaml", "residual",
-                                 "After timestepping");
+                                 "After timestepping", true);
                 }
 
                 if (loglevel == 1) {
@@ -506,11 +506,11 @@ void Sim1D::solve(int loglevel, bool refine_grid)
                 dt = m_tstep;
             }
             if (new_points && loglevel > 6) {
-                save("debug_sim1d.yaml", "debug", "After regridding");
+                save("debug_sim1d.yaml", "debug", "After regridding", true);
             }
             if (new_points && loglevel > 7) {
                 saveResidual("debug_sim1d.yaml", "residual",
-                             "After regridding");
+                             "After regridding", true);
             }
         } else {
             debuglog("grid refinement disabled.\n", loglevel);