After changing the input method, mode is set to default

Hi, there!
I'm troubling with use `skhd` with self-defined mode when I change the input method.

Simply, my `skhdrc` is as below.

```
:: default
:: foo

cmd -x ; foo
foo < cmd -x ; default

default < ctrl - t : echo "in default-mode"
foo < ctrl - t : echo "in foo-mode"
```

In my mac, the bind for changing the input method is
`cmd` + `space` via mac's system preferences.

In foo-mode, when I change the input method, the the mode is set to default.
Is there a way to keep foo-mode while I change the input method?

Reproduce the behavior using the shown skhdrc configuration, switching from default to foo mode and then changing the input method with macOS's cmd-space shortcut. Trace how mode state is handled during that input-method change; done means foo-mode remains active and its ctrl-t binding still runs afterward.

Written by the indexing model from the issue text.