Can't rename LiquidDoc param when cursor is at the first character of the var name

[charlespwd]

Describe the bug
F2 when the cursor is at the beginning of the param name shows "you can't rename this thing". Wondering if that's because of the same findCurentNode thing that I fixed last week.

Source

{% doc %}
  @param {collection} █collection - The collection object to display.
{% enddoc %}

Expected behaviour
Can rename the thing. (Works if the cursor is 1 to the right of it, e.g. c█ollection

Actual behaviour
The element can't be renamed.

Debugging information

• OS [e.g. Windows, Mac, Linux]
• OS Version
• Theme Check Version [e.g. 0.1.0]

Additional context
Add any other context about the problem here.