master bda8f5deec: Preserve contents of PRIMARY when sending unsupported drop

[Po Lu]

branch: master
commit bda8f5deec7dcbe35530f4a0b9f00cdec3805449
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Preserve contents of PRIMARY when sending unsupported drop
    
    * src/xterm.c (x_dnd_send_unsupported_drop): Set local value of
    PRIMARY to the preexisting selection value, if any.
---
 src/xterm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xterm.c b/src/xterm.c
index 37bbd5d7e1..926fb9b048 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -2824,7 +2824,10 @@ x_dnd_send_unsupported_drop (struct x_display_info 
*dpyinfo, Window target_windo
       root_y = dest_y;
     }
 
-  x_own_selection (QPRIMARY, Qnil, frame);
+  x_own_selection (QPRIMARY,
+                  assq_no_quit (QPRIMARY,
+                                dpyinfo->terminal->Vselection_alist),
+                  frame);
 
   event.xbutton.window = child;
   event.xbutton.x = dest_x;