Automatic select feature invoke unexpectedly

[hrsh7th]

{
  "map": {
    "prefix": "map",
    "body": ["map(() => { $1 })"]
  }
}

array.map#<Tab>

Then vsnip remove until 'array' that behavior is not expected.

I will introduce g:vsnip_select_trigger that's default value is empty.

[hrsh7th]

Fixed in 340e4c0.