- the log stops through a flag kept in a function, not a global one
- the messages are put together with std::format
- a vehicle dropped on a trainset in the launcher goes in once the
trainset is drawn, so the vehicles are gone through with a plain loop
again; the drop split into a new vehicle and a moved one
- the scenario that can't be opened is caught as the runtime error it
is, a file name outside of the code page as the system error it is
- a track of an unknown type is left out through the pointer owning it
- the keyword of a track type written out by a function of its own
- the picked node forgotten with ranges::replace_if, the empty
Forget_Node of the base renderer told why it is empty
- FileCased takes the path it works on
On master neither got a segment: update_location() dereferenced the missing one of a track of an unknown type, and
a tributary went to Switch(0), which logged "Cannot switch normal track", with no segment under it either.
A tributary is now a river of its first path. Its second path is kept in m_paths, isn't drawn nor run on, and is
written back with the type "tributary". A track of an unknown type is logged and left out by the loader; as it is no
node, its text stays in the file when the editor saves the scenery.
