Invalid autocorrect in Layout/SpaceInsideHashLiteralBraces

[bquorning]

When letting Layout/SpaceInsideHashLiteralBraces autocorrect code containing the text '{' as the last value in a hash, invalid code will be generated.

Slightly related to #3958 and #3976.

---

Expected behavior

With EnforcedStyleForEmptyBraces: space, autocorrect

h = { a: '{'}

into

h = { a: '{' }

With EnforcedStyleForEmptyBraces: no_space, autocorrect

h = {a: '{' }

into

h = {a: '{'}

Actual behavior

With EnforcedStyleForEmptyBraces: space, autocorrects

h = { a: '{'}

into

h = { a:                                                                                                                                                                                                         '{'}

(with “Infinite loop detected”)

With EnforcedStyleForEmptyBraces: no_space, autocorrects

h = {a: '{' }

into

h = {a:' }

RuboCop version

$ ❯ be rubocop -V
1.61.0 (using Parser 3.3.0.5, rubocop-ast 1.31.1, running on ruby 3.3.0) [arm64-darwin22]
  - rubocop-performance 1.20.2
  - rubocop-rake 0.6.0
  - rubocop-rspec 2.27.1