SVG paths with `Z` inside without space after it get mangled

[p-himik]

Reproduction requires vega-embed since without there's no SVG path parsing.
It can be done by using the below spec at https://vega.github.io/editor/ and switching to the Canvas rendering in the Settings panel.

{
  "$schema": "https://vega.github.io/schema/vega/v6.json",
  "data": [
    {
      "name": "shapes",
      "values": [
        {"x": 0, "path": "M-1-1H1V1H-1Z"},
        {"x": 210, "path": "M-1-1H1V1H-1ZM0-1 0 1"}
      ]
    }
  ],
  "marks": [
    {
      "type": "path",
      "from": {"data": "shapes"},
      "encode": {
        "enter": {
          "path": {"field": "path"},
          "stroke": {"value": "black"},
          "x": {"field": "x"},
          "scaleX": {"value": 100},
          "scaleY": {"value": 100}
        }
      }
    }
  ]
}

Notice how the left side of the second square has disappeared. Adding a space after Z in the second path fixed it.

I did a very superficial check just for this case and it seems that changing this line to const commandPattern = /(?:[mlhvcsqta]([^mlhvzcsqta]+))|z/gi; might work.