In postR13 is in the header handle for these default LTYPE values.

But in preR13 it quietly does not find a handle for these types.
```
...
          if (vars->LTYPE_BYLAYER)
            return vars->LTYPE_BYLAYER;
...
```
in https://github.com/LibreDWG/libredwg/blob/master/src/dwg.c#L2580-L2581

In the case of CONTINUOUS, there is the process of creating this LTYPE before this setting. Then there is the possibility to set vars->LTYPE_CONTINUOUS after creating.
Question: What about default LTYPE values like BYLAYER, BYBLOCK, CONTINUOUS in preR13?
This is a GitHub Issue
repo:libredwg
owner:LibreDWG
Title : Question: What about default LTYPE values like BYLAYER, BYBLOCK, CONTINUOUS in preR13?
Issue date:

--- start body ---
In postR13 is in the header handle for these default LTYPE values.

But in preR13 it quietly does not find a handle for these types.
```
...
          if (vars->LTYPE_BYLAYER)
            return vars->LTYPE_BYLAYER;
...
```
in https://github.com/LibreDWG/libredwg/blob/master/src/dwg.c#L2580-L2581

In the case of CONTINUOUS, there is the process of creating this LTYPE before this setting. Then there is the possibility to set vars->LTYPE_CONTINUOUS after creating.
--- end body ---
