Ctrl V is counted as two strokes in challenge

[ludovicschwartz]

On some challenge Ctrl V is counted as 2 keystrokes rather than one:

Vimgolf shows
<C->VGld=GZZ
rather than
<C-V>Gld=GZZ

This is the challenge in question : https://www.vimgolf.com/challenges/9v0064f211df000000000255

[ludovicschwartz]

More generally, Control + another key is counted as two strokes.