From fef0cd81916f84b0efd9e059ac596c19e2627424 Mon Sep 17 00:00:00 2001
From: Bastien Montagne <montagne29@wanadoo.fr>
Date: Fri, 26 Aug 2016 20:29:40 +0200
Subject: [PATCH] Fix T49151: ParticleSettings' usercount not decremented when
 removing a psys from an object.

---
 source/blender/blenkernel/intern/particle.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/blender/blenkernel/intern/particle.c b/source/blender/blenkernel/intern/particle.c
index 4fb302c71ea..aecaf8537bb 100644
--- a/source/blender/blenkernel/intern/particle.c
+++ b/source/blender/blenkernel/intern/particle.c
@@ -3172,6 +3172,9 @@ void object_remove_particle_system(Scene *UNUSED(scene), Object *ob)
 
 	/* clear particle system */
 	BLI_remlink(&ob->particlesystem, psys);
+	if (psys->part) {
+		id_us_min(&psys->part->id);
+	}
 	psys_free(ob, psys);
 
 	if (ob->particlesystem.first)