vim-patch:8.2.0920: writing viminfo fails with a circular reference

Problem:    Writing viminfo fails with a circular reference.
Solution:   Use copyID to detect the cycle. (closes vim/vim#6217)
https://github.com/vim/vim/commit/5b157fe2edfdce5f77080aeac2b4a03f39eb1c1a

1 files changed, 6 insertions, 7 deletions

diff --git a/test/functional/shada/variables_spec.lua b/test/functional/shada/variables_spec.lua
index f53d1a873c..cc0e7fa537 100644
--- a/test/functional/shada/variables_spec.lua
+++ b/test/functional/shada/variables_spec.lua
@@ -1,7 +1,7 @@
 -- ShaDa variables saving/reading support
 local helpers = require('test.functional.helpers')(after_each)
-local meths, funcs, nvim_command, eq, exc_exec =
-  helpers.meths, helpers.funcs, helpers.command, helpers.eq, helpers.exc_exec
+local meths, funcs, nvim_command, eq =
+  helpers.meths, helpers.funcs, helpers.command, helpers.eq
 
 local shada_helpers = require('test.functional.shada.helpers')
 local reset, clear = shada_helpers.reset, shada_helpers.clear
@@ -145,16 +145,15 @@ describe('ShaDa support code', function()
     eq('10', meths.get_var('U'))
   end)
 
-  it('errors and writes when a self-referencing list is stored in a variable',
+  it('ignore when a self-referencing list is stored in a variable',
   function()
     meths.set_var('L', {})
     nvim_command('call add(L, L)')
     meths.set_var('U', '10')
     nvim_command('set shada+=!')
-    eq('Vim(wshada):E5005: Unable to dump variable g:L: container references itself in index 0',
-       exc_exec('wshada'))
-    meths.set_option('shada', '')
-    reset('set shada+=!')
+    nvim_command('wshada')
+    reset()
+    nvim_command('rshada')
     eq('10', meths.get_var('U'))
   end)
 end)