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d539d6ac6e
Problem: if close_buffer() in set_curbuf() unloads curbuf, NULL pointer
accesses may occur from enter_buffer() calling
end_visual_mode(), as curbuf is already abandoned and possibly
unloaded. Also, selection registers may not contain the
selection with clipboard+=autoselect(plus).
Solution: Move close_buffer()'s end_visual_mode() call to buf_freeall(), after
any autocmds that may restart it, but just before freeing anything
(Sean Dewar)
related: vim/vim#19728
a8fdfd4fcb
Maybe this should be considered partial? clipboard+=autoselect isn't
implemented. If it is, we may need to update these comments to mention
TextYankPost being possible, and unskip its test.
Co-authored-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>