Postfix completion seems to be inconsistently sending completion item data

[jonathan-elize]

I see that sometimes the postfix completions such as nnull work correctly, but sometimes they don't in terms of whether or not they replace the original text:

snippet.mov

In the second completion I didn't type anything but just selected the completion. In the first I typed a bit first to get the nnull to be higher in the list first.

Here's an example of when the text is not replaced:

{
  command = {
    arguments = { "78", "0" },
    command = "java.completion.onDidSelect",
    title = ""
  },
  data = {
    pid = "0",
    rid = "78"
  },
  insertText = "if (b != null) {\n\t${0}\n}",
  insertTextFormat = 2,
  insertTextMode = 2,
  kind = 15,
  label = "nnull",
  labelDetails = {
    description = "Creates an if statement and checks if the expression does not resolve to null"
  },
  sortText = "999999999"
}

Here's an example of the payload when it is replaced:

{
  command = {
    arguments = { "100", "2" },
    command = "java.completion.onDidSelect",
    title = ""
  },
  data = {
    pid = "2",
    rid = "100"
  },
  insertTextFormat = 2,
  insertTextMode = 2,
  kind = 15,
  label = "nnull",
  labelDetails = {
    description = "Creates an if statement and checks if the expression does not resolve to null"
  },
  sortText = "999999999",
  textEdit = {
    insert = {
      ["end"] = {
        character = 10,
        line = 6
      },
      start = {
        character = 10,
        line = 6
      }
    },
    newText = "if (b != null) {\n\t${0}\n}",
    replace = {
      ["end"] = {
        character = 10,
        line = 6
      },
      start = {
        character = 10,
        line = 6
      }
    }
  },
  textEditText = "if (b != null) {\n\t${0}\n}"
}

Does anyone have any ideas why this might be?