OpenSCAD version 2019.01-RC2  Working dir changing when saving, file not found warning displayed only one time



I'm trying to import a stl file, which is located at /home/ben/Documents/PRINT3D/FILE.stl.


when i start a new file by starting new instance of openscad, then select "open recent file" (recent file in /home/ben/Documents/PRINT3D/ ), then  select file, new , without saving the file,

i type the following code:


 translate([0,0,50]) import ("PRINT3D/FILE.stl");   // this one is displayed
 translate([0,0,-50]) import ("FILE.stl");

and got :

Compiling design (CSG Products generation)...
WARNING: Can't open import file '/home/ben/Documents/FILE.stl', import() at line 2
Geometries in cache: 2


i save the project under /home/ben/Documents/PRINT3D/test.scad , then press F5

 translate([0,0,50]) import ("PRINT3D/FILE.stl");
 translate([0,0,-50]) import ("FILE.stl");  // this one is displayed


and got :

Compiling design (CSG Products generation)...
WARNING: Can't open import file '/home/ben/Documents/PRINT3D/PRINT3D/FILE.stl', import() at line 1
Geometries in cache: 3

then i press F5 :

Compiling design (CSG Tree generation)...
Compiling design (CSG Products generation)...
Geometries in cache: 10


and there is no more warning about file not found.

when i start a new file using "new": typing the same code, and there is no more warning about file not found.