Caps lock for umlaut combinations

[JohnSass]

I'm having trouble with creating a complex modification for emulating English International Keyboards in Windows, specifically for typing Swedish characters (å, ä and ö). Everything is working fine, except for when caps lock is involved.

I'll stick to ä for this report. The behaviour I want is for opt-q to produce ä, which would be produced on Macs British keyboard with opt-u a, for creating an umlaut (¨) followed by a a, which combines to create an ä. I can achieve this behaviour with this manipulator:

{
            "from": {
                "key_code": "q",
                "modifiers": { "mandatory": ["option"] }
            },
            "to": [
                {
                    "key_code": "u",
                    "modifiers": ["option"]
                },
                { "key_code": "a" }
            ],
            "type": "basic"
}

The problem is when we include shift and caps lock - we only want the shift modifier to affect the second key press, since shift-opt-u produces another symbol than an umlaut (the correct key press for Ä would be opt-u shift-a). This can easily be achieved with this manipulator:

{
            "from": {
                "key_code": "q",
                "modifiers": { "mandatory": ["option", "shift"] }
            },
            "to": [
                {
                    "key_code": "u",
                    "modifiers": ["option"]
                },
                {
                    "key_code": "a",
                    "modifiers": ["shift"]
                }
            ],
            "type": "basic"
}

And this works too! The problem is that I can't find any manipulator for handling caps lock (since caps lock: opt-u produces the same character as shift-opt-u). I attempted this one:

{
            "from": {
                "key_code": "q",
                "modifiers": { "mandatory": ["option", "caps_lock"] }
            },
            "to": [
                {
                    "key_code": "u",
                    "modifiers": ["option"]
                },
                {
                    "key_code": "a",
                    "modifiers": ["shift"]
                }
            ],
            "type": "basic"
}

That one correctly produces an Ä symbol, but it also seems to turn off the caps lock state - for example, pressing caps_lock opt-q q produces Äq - note that the q is lowercase. According to the event viewer, the key presses produce these events:

[
  {
    "type": "down",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": ""
  },
  {
    "type": "up",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": ""
  },
  {
    "type": "down",
    "name": {"key_code":"right_option"},
    "usagePage": "7 (0x0007)",
    "usage": "230 (0x00e6)",
    "misc": "flags right_option"
  },
  {
    "type": "down",
    "name": {"key_code":"left_option"},
    "usagePage": "7 (0x0007)",
    "usage": "226 (0x00e2)",
    "misc": "flags left_option,right_option"
  },
  {
    "type": "up",
    "name": {"key_code":"right_option"},
    "usagePage": "7 (0x0007)",
    "usage": "230 (0x00e6)",
    "misc": "flags left_option"
  },
  {
    "type": "down",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": "flags left_option"
  },
  {
    "type": "up",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": "flags left_option"
  },
  {
    "type": "down",
    "name": {"key_code":"u"},
    "usagePage": "7 (0x0007)",
    "usage": "24 (0x0018)",
    "misc": "flags left_option"
  },
  {
    "type": "up",
    "name": {"key_code":"u"},
    "usagePage": "7 (0x0007)",
    "usage": "24 (0x0018)",
    "misc": "flags left_option"
  },
  {
    "type": "down",
    "name": {"key_code":"left_shift"},
    "usagePage": "7 (0x0007)",
    "usage": "225 (0x00e1)",
    "misc": "flags left_option,left_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"left_option"},
    "usagePage": "7 (0x0007)",
    "usage": "226 (0x00e2)",
    "misc": "flags left_shift"
  },
  {
    "type": "down",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": "flags left_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": "flags left_shift"
  },
  {
    "type": "down",
    "name": {"key_code":"a"},
    "usagePage": "7 (0x0007)",
    "usage": "4 (0x0004)",
    "misc": "flags left_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"a"},
    "usagePage": "7 (0x0007)",
    "usage": "4 (0x0004)",
    "misc": "flags left_shift"
  },
  {
    "type": "up",
    "name": {"key_code":"left_shift"},
    "usagePage": "7 (0x0007)",
    "usage": "225 (0x00e1)",
    "misc": ""
  },
  {
    "type": "down",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": ""
  },
  {
    "type": "up",
    "name": {"key_code":"caps_lock"},
    "usagePage": "7 (0x0007)",
    "usage": "57 (0x0039)",
    "misc": ""
  },
  {
    "type": "down",
    "name": {"key_code":"q"},
    "usagePage": "7 (0x0007)",
    "usage": "20 (0x0014)",
    "misc": ""
  },
  {
    "type": "up",
    "name": {"key_code":"q"},
    "usagePage": "7 (0x0007)",
    "usage": "20 (0x0014)",
    "misc": ""
  }
]

Can I ask if this is expected behavior, and if so what the intention for handling caps lock state is?