patch 8.0.0677: setting 'filetype' may switch buffers
Problem: Setting 'filetype' internally may cause the current buffer and
window to change unexpectedly.
Solution: Set curbuf_lock. (closes #1734)
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 194b3bf..ba8fde6 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -6878,6 +6878,8 @@
# ifdef FEAT_AUTOCMD
/* Do execute autocommands for setting the filetype (load syntax). */
unblock_autocmds();
+ /* But don't allow switching to another buffer. */
+ ++curbuf_lock;
# endif
/* Showing the prompt may have set need_wait_return, reset it. */
@@ -6893,6 +6895,9 @@
}
set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
}
+# ifdef FEAT_AUTOCMD
+ --curbuf_lock;
+# endif
/* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
* sets 'textwidth' to 78). */