apply test for overlap with rigid bodies to set and velocity command

src/velocity.cpp

@@ -68,6 +68,12 @@ void Velocity::command(int narg, char **arg)
   if (igroup == -1) error->all(FLERR,"Could not find velocity group ID");
   groupbit = group->bitmask[igroup];
 
+  // check if velocities of atoms in rigid bodies are updated
+
+  if (modify->check_rigid_group_overlap(groupbit))
+    error->warning(FLERR,"Changing velocities of atoms in rigid bodies. "
+                     "This has no effect unless rigid bodies are rebuild");
+
   // identify style
 
   if (strcmp(arg[1],"create") == 0) style = CREATE;