SHIFT+PAGE UP not working on ipad magic keyboard

[TobiaszCudnik]

Checklist

• [x] Using latest version on the App Store
• [x] Read the docs
• [x] Searched for existing GitHub issues

Configuration

Blink 15, ipados 15

Describe the bug

When in tmux, SHIFT+PAGE UP doesnt scroll the buffer. Its SHIFT+OPTION+ARROW UP on the ipad magic keyboard.

showkey
^[       27 0033 0x1b
[        91 0133 0x5b
1        49 0061 0x31
;        59 0073 0x3b
2        50 0062 0x32
A        65 0101 0x41