https://bugs.winehq.org/show_bug.cgi?id=45148
--- Comment #16 from Mitch midda.cliff+wine@gmail.com --- I have a CoolerMaster CMstorm. Is everyone reporting this using a mechanical keyboard?
It's a bit of a hack, but to get around this for the time being, I remapped my left Ctrl key to function as right Ctrl as per the commands here:
https://askubuntu.com/questions/296155/how-can-i-remap-keyboard-keys
Doing so hasn't impacted anything else so far, but hopefully a real solution is found soon.