meson fmt does not handle else in nested `if correctly

[pbor]

Describe the bug

Create a dummy project with this meson file

project('test', 'c', meson_version: '>= 1.0.0')

conf = configuration_data()

foo = false
bar = false

if foo
  if bar
    conf.set('TEST', 1)
  else
    conf.set('TEST', 0)
  endif
endif

run meson fmt on it and it will be formatted to

project('test', 'c', meson_version: '>= 1.0.0')

conf = configuration_data()

foo = false
bar = false

if foo
  if bar
    conf.set('TEST', 1)
else
    conf.set('TEST', 0)
  endif
endif

Expected behavior
No changes to the file