Feature request #5488
Allow all parameter types to be optional
|Pull Request or Patch supplied:||No||Resolution:||fixed/implemented|
|Easy fix?:||No||Copied to github as #:||15106|
Currently only layers can be.
It is usefull also for all other types (number, string, file, crs, ...)
Tried gdalwarp, it is surprising to see the "source crs" param filled with 4326 while the layer is utm.