Fix wrong overhang display for gstring compositions (Bug#12364).

* xdisp.c (right_overwritten, right_overwriting): Also handle gstring
composition cases (Bug#12364).

* xterm.c (x_draw_glyph_string): Avoid overwriting inverted left
overhang of succeeding glyphs overlapping box cursor.

* w32term.c (x_draw_glyph_string): Likewise.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/xterm.c b/src/xterm.c
index f0f6702cd67..e5a5932beae 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -2975,6 +2975,7 @@ x_draw_glyph_string (struct glyph_string *s)
                 XSetClipMask (next->display, next->gc, None);
                 next->hl = save;
                 next->num_clips = 0;
+                next->clip_head = s->next;
               }
         }
     }