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-rw-r--r--src/buffer.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/buffer.h b/src/buffer.h
index d461415e036..de117eb9c61 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -847,8 +847,8 @@ struct buffer
struct region_cache *width_run_cache;
struct region_cache *bidi_paragraph_cache;
- /* Non-zero means don't use redisplay optimizations for
- displaying this buffer. */
+ /* Non-zero means disable redisplay optimizations when rebuilding the glyph
+ matrices (but not when redrawing). */
bool_bf prevent_redisplay_optimizations_p : 1;
/* Non-zero whenever the narrowing is changed in this buffer. */