The default key of minemenu mod is "R",i rebind it to ctrol+r,when enter game,both "r" and "ctrol +r" work,how can i make "r" invalid？
here is my json file
"minemenu_open_menu": { "holder": "", "name": "", "category": "mc.misc", "key": 19, "mod": "CONTROL", "enabled": true}

First, sorry for late answer.
This problem is related to MineMenu, so you should ask MM author. Anyway i fixed this in ver: 2.7.4 for 1.12.2. Combinations now will work properly. Consider it solved.