patch 8.0.0486: crash and endless loop when closing windows in autocmd commit https://github.com/vim/vim/commit/8c752bd6c4af54c0b7bac35a39acc2bf16015f85 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 19 17:09:56 2017 +0100 patch 8.0.0486: crash and endless loop when closing windows in autocmd Problem: Crash and endless loop when closing windows in a SessionLoadPost autocommand. Solution: Check for valid tabpage. (partly neovim #6308)

start:
'abcd'
'abcd'
'Dance'
'Dance'
{'var_str': 'Dance'}
{'var_str': 'Dance'}
'Chance'
{}
{}
''
'Chance'
0
0
[1, 2, 3]
[1, 2, 3]
{'var_list': [1, 2, 3], 'other': 777}
{'var_list': [1, 2, 3], 'other': 777}
[4, 5, 6, 7]
''
[4, 5, 6, 7]
''
[4, 5, 6, 7]
{'dict': 'tabwin'}
{'dict': 'tabwin'}
{'var_dict': {'dict': 'tabwin'}}
{'var_dict': {'dict': 'tabwin'}}
{'dict2': 'newval'}
{}
{}
''
{'dict2': 'newval'}
''
{'dict2': 'newval'}
''
1