[2.1.8] Linux X11 Drag to import does not work on non-minified JSON

[Chindraba]

To ensure everything was correct with new versions and potential changes I launced a new game, switched to editor, placed 4 storage tanks and made a blueprint. I exported the generated string, standard and JSON, to files. I also minified the JSON into a third file. With the each file open in Kate, I highlighted the text and pulled it into the game.

The original compressed and encoded version of the string imported perfectly. The minified JSON imported just as well. The standard, pretty-print version of JSON - exactly what the game generated, failed with an error. The game gave some error type bong sound and a brief floating text message. It actually looks like there are at least two messages overlaid, though I can only see the top one for sure. (Attached)

The issue with pretty-print JSON is not limited to this one file, but the sample I tested with is in the 4-tanks.json file, attached.

What I expected is for the JSON text to be imported as a blueprint to either place or save in the library, same as the other formats of text

I tested this in a few random versions going back as far as 2.0.69 and it's all the same. Guessing it was this way from the beginning.

The attached log files seem entirely silent about the error.

Tested with in a new vanilla space age game and no existing blueprints. Though it also will fail in a non-expansion binary.

Space Age 2.1.8 binary test in space-age-factorio-current.log
Base 2.1.8 binary test in base-game-factorio-current.log