Certain Control+Shift combinations are not recognized when using overloaded capslock -> control/esc

[ryantking]

I was tracking down an issue in my terminal emulator where all Control+Shift+ keybindings work as expected, except for Control+Shift+C. I was able to determine that the issue only occurs when using Capslock+Shift+C using the example configuration:

[main]
capslock = overload(control, esc)
esc = capslock

I'd like to use this binding for copying so I'd prefer to get it working versus choosing something else. Is there a workaround with a macro or other overload function?

Edit: Also impacts C-S-2