vim-patch:8.1.2073: when editing a buffer 'colorcolumn' may not work

Problem:    When editing a buffer 'colorcolumn' may not work.
Solution:   Set the buffer before copying option values. Call
            check_colorcolumn() after copying window options.
https://github.com/vim/vim/commit/010ee9657acf1a9f799079d718998c94e50ccadc

1 files changed, 5 insertions, 5 deletions

diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index a9addc0e68..ee704bd1bd 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -1497,6 +1497,11 @@ void set_curbuf(buf_T *buf, int action)
  */
 void enter_buffer(buf_T *buf)
 {
+  // Get the buffer in the current window.
+  curwin->w_buffer = buf;
+  curbuf = buf;
+  curbuf->b_nwindows++;
+
   // Copy buffer and window local option values.  Not for a help buffer.
   buf_copy_options(buf, BCO_ENTER | BCO_NOHELP);
   if (!buf->b_help) {
@@ -1507,11 +1512,6 @@ void enter_buffer(buf_T *buf)
   }
   foldUpdateAll(curwin);        // update folds (later).
 
-  // Get the buffer in the current window.
-  curwin->w_buffer = buf;
-  curbuf = buf;
-  curbuf->b_nwindows++;
-
   if (curwin->w_p_diff) {
     diff_buf_add(curbuf);
   }