patch 8.1.1437: code to handle callbacks is duplicated commit https://github.com/vim/vim/commit/3a97bb3f0f8bd118ae23f1c97e55d84ff42eef20 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 1 13:28:35 2019 +0200 patch 8.1.1437: code to handle callbacks is duplicated Problem: Code to handle callbacks is duplicated. Solution: Add callback_T and functions to deal with it.

--- a/src/buffer.c
+++ b/src/buffer.c
@@ -862,7 +862,7 @@ free_buffer(buf_T *buf)
 #endif
 #ifdef FEAT_JOB_CHANNEL
     vim_free(buf->b_prompt_text);
-    free_callback(buf->b_prompt_callback, buf->b_prompt_partial);
+    free_callback(&buf->b_prompt_callback);
 #endif
 
     buf_hashtab_remove(buf);