prefix h/j/k/l gets swallowed when Ctrl is still held, so fast pane switching silently fails

[xeind]

My initial issue

I migrated from tmux to herdr today. Switching panes with prefix h/l only works if I pause after the prefix. At normal typing speed nothing happens: no pane switch, no character in the pane, and prefix mode is gone, so I have to press the prefix again. In tmux the same motion is instant, and this hits me every few minutes.

What's causing it

It's not a timing issue. When I type Ctrl+B h fast, Ctrl is still held when the h lands, so herdr sees Ctrl+h in prefix mode instead of h. Holding Ctrl on purpose reproduces it 100% of the time. Releasing Ctrl before the h works at any speed.

The problem

Ctrl+h has no prefix binding, so herdr silently swallows the key and exits prefix mode. Nothing moves, nothing gets typed, no feedback. I'd like this fixed: either fall back to the bare key's binding when the Ctrl-modified key is unbound, or bind ctrl+h/j/k/l to pane focus by default, the way tmux doubles up some of its own bindings (C-b C-o, C-b C-z).

For anyone hitting this now, a config workaround:

[keys]
focus_pane_left  = ["prefix+h", "prefix+ctrl+h"]
focus_pane_down  = ["prefix+j", "prefix+ctrl+j"]
focus_pane_up    = ["prefix+k", "prefix+ctrl+k"]
focus_pane_right = ["prefix+l", "prefix+ctrl+l"]