An example is iron rods, there are other mods also providing this item (e.g. Immersive Engineering), so please use the tag instead of item everywhere.

the iron rod is already tagged, I've tested it with Immersive Engineering. Unless forge/IE changed it should still work. See: #1

Other way around, use the tag in your recipes, so IE iron rods can be used to craft your stuff.

Confirmed that iron rods still work with IE.

Fixed in 20200905a (I could still be missing something)

Oh yeah, you're right, totally forgot! Thanks, will fix.