vim-patch:8.0.1024

Problem:    Manual folds are lost when a session file has the same buffer in
            two windows. (Jeansen)
Solution:   Use ":edit" only once. (Christian Brabandt, closes vim/vim#1958)

https://github.com/vim/vim/commit/4bebc9a0565670b853d227f81a9a31eafdb47eed

1 files changed, 32 insertions, 0 deletions

diff --git a/src/nvim/testdir/test_mksession.vim b/src/nvim/testdir/test_mksession.vim
index 7158b31a14..13fb07c7e0 100644
--- a/src/nvim/testdir/test_mksession.vim
+++ b/src/nvim/testdir/test_mksession.vim
@@ -121,4 +121,36 @@ func Test_mksession_arglist()
   argdel *
 endfunc
 
+
+func Test_mksession_one_buffer_two_windows()
+  edit Xtest1
+  new Xtest2
+  split
+  mksession! Xtest_mks.out
+  let lines = readfile('Xtest_mks.out')
+  let count1 = 0
+  let count2 = 0
+  let count2buf = 0
+  for line in lines
+    if line =~ 'edit \f*Xtest1$'
+      let count1 += 1
+    endif
+    if line =~ 'edit \f\{-}Xtest2'
+      let count2 += 1
+    endif
+    if line =~ 'buffer \f\{-}Xtest2'
+      let count2buf += 1
+    endif
+  endfor
+  call assert_equal(1, count1, 'Xtest1 count')
+  call assert_equal(2, count2, 'Xtest2 count')
+  call assert_equal(2, count2buf, 'Xtest2 buffer count')
+
+  close
+  bwipe!
+  !cp Xtest_mks.out /tmp
+  call delete('Xtest_mks.out')
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab