patch 8.2.0762: buffer is not considered modified after setting crypt key
Problem: Buffer is not considered modified after setting crypt key.
Solution: Set the modified flag. (Christian Brabandt, closes #6082)
diff --git a/src/testdir/test_crypt.vim b/src/testdir/test_crypt.vim
index ab62d84..fa26ba5 100644
--- a/src/testdir/test_crypt.vim
+++ b/src/testdir/test_crypt.vim
@@ -110,3 +110,29 @@
bwipe!
endfunc
+func Test_crypt_set_key_changes_buffer()
+
+ new Xtest1.txt
+ call setline(1, 'nothing')
+ set cryptmethod=blowfish2
+ call feedkeys(":X\<CR>foobar\<CR>foobar\<CR>", 'xt')
+ call assert_fails(":q", "E37:")
+ w
+ set key=anotherkey
+ call assert_fails(":bw")
+ w
+ call feedkeys(":X\<CR>foobar\<CR>foobar\<CR>", 'xt')
+ call assert_fails(":bw")
+ w
+ let winnr = winnr()
+ wincmd p
+ call setwinvar(winnr, '&key', 'yetanotherkey')
+ wincmd p
+ call assert_fails(":bw")
+ w
+
+ set cryptmethod&
+ set key=
+ bwipe!
+ call delete('Xtest1.txt')
+endfunc