I tried recreating this issue but it worked perfectly fine for me? Could you test if this only happens for this tool, cause in my testing, basic tools worked with mending.

Alright, will test later!

I am closing this as stale unless you have some more info in this.

I'll take a look at some point, forgot about this issue. Last time I checked that pickaxe had the same issue still, so it's not a one off situation.

Aight, just repoen the issue of you find something!