Stupid copy paste error. Use the right variable (xp) to check if the peer
has a RDE session open or not.  In the end also xp->conf is shipped in the
imsg.

-- 
:wq Claudio

Index: session.c
===================================================================
RCS file: /cvs/src/usr.sbin/bgpd/session.c,v
diff -u -p -r1.531 session.c
--- session.c	7 May 2026 09:17:27 -0000	1.531
+++ session.c	7 May 2026 14:40:00 -0000
@@ -1960,7 +1960,7 @@ merge_peers(struct bgpd_config *c, struc
 				session_template_clone(xp, NULL, xp->conf.id,
 				    xp->conf.remote_as);
 
-				if (p->rdesession)
+				if (xp->rdesession)
 					imsg_rde(IMSG_SESSION_ADD,
 					    xp->conf.id, &xp->conf,
 					    sizeof(xp->conf));