updated for version 7.4.645
Problem: When splitting the window in a BufAdd autocommand while still in
the first, empty buffer the window count is wrong.
Solution: Do not reset b_nwindows to zero and don't increment it.
diff --git a/src/buffer.c b/src/buffer.c
index e4230fc..edb38d6 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -1794,7 +1794,6 @@
if (aborting()) /* autocmds may abort script processing */
return NULL;
#endif
- /* buf->b_nwindows = 0; why was this here? */
free_buffer_stuff(buf, FALSE); /* delete local variables et al. */
/* Init the options. */
@@ -1872,6 +1871,9 @@
#ifdef FEAT_AUTOCMD
if (!(flags & BLN_DUMMY))
{
+ /* Tricky: these autocommands may change the buffer list. They could
+ * also split the window with re-using the one empty buffer. This may
+ * result in unexpectedly losing the empty buffer. */
apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf);
if (!buf_valid(buf))
return NULL;