no-obscure-array-access fix can duplicate lines

[CvX]

Under certain conditions the --fix for no-obscure-array-access can generate duplicated lines.

before:

<Component
  title="<error>"
  id={{@model.0.id}}
  as |value|
></Component>

after:

<Component
  title="<error>"
  id={{get @model "0.id"}}
  as |value|>"
  id={{get @model "0.id"}}
  as |value|>"
  id={{get @model "0.id"}}
  as |value|></Component>

expected:

<Component
  title="<error>"
  id={{get @model "0.id"}}
  as |value|
></Component>