] in parameter expansion causes error

[rivke41levp656]

Look at the following script:

#!/bin/bash

# comment is grey — syntax highlighting works
temp="${temp%]*}"

# comment is not grey — syntax highlighting is broken here

: "$"
# comment is grey again — syntax highlighting somehow restored

tree output:

(program ; [0, 0] - [9, 0]
  (comment) ; [0, 0] - [0, 11]
  (comment) ; [2, 0] - [2, 51]
  (variable_assignment ; [3, 0] - [7, 5]
    name: (variable_name) ; [3, 0] - [3, 4]
    value: (string ; [3, 5] - [7, 5]
      (expansion ; [3, 6] - [7, 3]
        (variable_name) ; [3, 8] - [3, 12]
        (ERROR ; [3, 13] - [3, 16]
          (word)) ; [3, 13] - [3, 15]
        (string ; [3, 16] - [7, 3]
          (string_content) ; [5, 0] - [5, 60]
          (string_content))))) ; [7, 0] - [7, 2]
  (comment)) ; [8, 0] - [8, 64]