patch 9.0.0965: using one window for executing autocommands is insufficient
Problem: Using one window for executing autocommands is insufficient.
Solution: Use up to five windows for executing autocommands.
diff --git a/src/fileio.c b/src/fileio.c
index 9916de8..1ee08e2 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -4369,8 +4369,14 @@
int flags = READ_NEW;
int prepped = OK;
- // set curwin/curbuf for "buf" and save some things
+ // Set curwin/curbuf for "buf" and save some things.
aucmd_prepbuf(&aco, buf);
+ if (curbuf != buf)
+ {
+ // Failed to find a window for "buf", it is dangerous to continue,
+ // better bail out.
+ return;
+ }
// Unless reload_options is set, we only want to read the text from the
// file, not reset the syntax highlighting, clear marks, diff status, etc.