Keys defined to output whole words can get polluted by previous keypresses

[AntiSol]

Hello,

I've been experimenting with building a custom keyboard layout using the nightly build.

I've noticed that when I define keys to output an entire word, I get weird results in some circumstances.

Imagine I have the following two keys defined:

- type: base
  spec: "hello"
  moreKeys: "world"
- "test"

This mostly works as I'd expect - I get a "hello" key which I can long-press to turn it into a "world" key, and I also get a "test" key.

But: sometimes, when I press one of these keys and then the other, I get the first letter from the first keypress prefixed onto the correct output from the second.

Note that this does not seem to happen in the test area inside the layout editor, you have to go into a different text-editing application to see it. I also think it only applies when the key is pressed at the start of a new sentence (i.e when the word would be capitalised)

To reproduce, try this:

1. define the keys above
2. go into an application where you can edit text. I've been seeing it in Signal, my SMS app, and my notes app, but I believe any text editor should do.
3. position the cursor at the start of a new line
4. press the 'hello' key, observe correct output of "HELLO" (capitalisation isn't perfect, but that's a separate issue)
5. press backspace a bunch of times to delete the "HELLO" output and put your cursor back on the start of the line
6. press the "world" key, observe the bug: output will be "HWORLD", prefixing the "H" from hello to the correct output.
7. This can be fixed by closing the keyboard and re-opening it, or it seems by moving the cursor away from the start of the line. The problem seems to happen most consistently when the words are capitalised on the keyboard and you are at the start of a line of text.

Thanks!