[1.1.11] Fluid output on rocket fuel assembler in BPs

[TinyDM]

Hi! Not sure if I'm reporting this correctly but wanted to try anyway. I was making a blueprint that turns light oil into rocket fuel and I had finished and made a blueprint, available at https://pastebin.com/Tk7AhjzE, when I noticed that there was a fluid output near the fast inserters in the BP. AFAIK rocket fuel shouldn't have a fluid output and I haven't ever seen an assembler with a fluid input and output. I originally found the bug playing with the Editor Extensions mod, but I disabled it and found the same behavior in vanilla. Super sorry if this has already been reported. Pictures below.

[Deadlock989]

Can reproduce and not only with rocket fuel - but apparently any assembler recipe that has a fluid input/output without an output/input.

Assemblers have both an ingredient fluid box input and output, but by default the assemblers don't display them as pipe connections if the recipe doesn't actually use either one or both of them. However it seems both fluid boxes are being shown in blueprints regardless of the state of their real-world visibility according to the recipe.

[Loewchen]

viewtopic.php?f=58&t=26439

[Guenni7]

All the polishing to the game for years and this bug has survived since 2016?
I mean, it shows something that's not there, if this is not a bug, what is?