Revert "Particle system: Move runtime data to runtime field"

This reverts commit 36faf739a71624b6ca10cec7233779f9eeace0bd.

Somewhat annoying but this change had some unforeseen consequences,
which lead to an actual bug.

Since this change was not sufficient to get original report fixed
is easier to simply revert for now.

Fixes T65842: Hair disappears when clicking on particle system name

1 files changed, 6 insertions, 7 deletions

diff --git a/source/blender/blenkernel/intern/object.c b/source/blender/blenkernel/intern/object.c
index e74b2b0f671..2a66edc8d42 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -497,13 +497,12 @@ void BKE_object_free_caches(Object *object)
   for (md = object->modifiers.first; md != NULL; md = md->next) {
     if (md->type == eModifierType_ParticleSystem) {
       ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
-      ParticleSystemModifierDataRuntime *psmd_runtime = BKE_particle_modifier_runtime_ensure(psmd);
-      if (psmd_runtime->mesh_final) {
-        BKE_id_free(NULL, psmd_runtime->mesh_final);
-        psmd_runtime->mesh_final = NULL;
-        if (psmd_runtime->mesh_original) {
-          BKE_id_free(NULL, psmd_runtime->mesh_original);
-          psmd_runtime->mesh_original = NULL;
+      if (psmd->mesh_final) {
+        BKE_id_free(NULL, psmd->mesh_final);
+        psmd->mesh_final = NULL;
+        if (psmd->mesh_original) {
+          BKE_id_free(NULL, psmd->mesh_original);
+          psmd->mesh_original = NULL;
         }
         psmd->flag |= eParticleSystemFlag_file_loaded;
         update_flag |= ID_RECALC_GEOMETRY;