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-rw-r--r--src/nvim/window.c2
-rw-r--r--test/functional/ex_cmds/help_spec.lua27
2 files changed, 28 insertions, 1 deletions
diff --git a/src/nvim/window.c b/src/nvim/window.c
index e60cfbfb92..f9a0839702 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -6062,7 +6062,7 @@ static win_T *get_snapshot_focus(int idx)
}
}
- return sn->fr_win;
+ return win_valid(sn->fr_win) ? sn->fr_win : NULL;
}
/*
diff --git a/test/functional/ex_cmds/help_spec.lua b/test/functional/ex_cmds/help_spec.lua
new file mode 100644
index 0000000000..66d7d7d89f
--- /dev/null
+++ b/test/functional/ex_cmds/help_spec.lua
@@ -0,0 +1,27 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local clear = helpers.clear
+local command = helpers.command
+local eq = helpers.eq
+local funcs = helpers.funcs
+
+describe(':help', function()
+ before_each(clear)
+
+ it('window closed makes cursor return to a valid win/buf #9773', function()
+ command('help help')
+ eq(1001, funcs.win_getid())
+ command('quit')
+ eq(1000, funcs.win_getid())
+
+ command('autocmd WinNew * wincmd p')
+
+ command('help help')
+ -- Window 1002 is opened, but the autocmd switches back to 1000 and
+ -- creates the help buffer there instead.
+ eq(1000, funcs.win_getid())
+ command('quit')
+ -- Before #9773, Nvim would crash on quitting the help window.
+ eq(1002, funcs.win_getid())
+ end)
+end)