Fix a few unintended changes with new default startup.blend.

source/blender/blenkernel/BKE_screen.h

@@ -325,6 +325,7 @@ void BKE_spacedata_id_unref(struct ScrArea *sa, struct SpaceLink *sl, struct ID
 /* area/regions */
 struct ARegion *BKE_area_region_copy(struct SpaceType *st, struct ARegion *ar);
 void            BKE_area_region_free(struct SpaceType *st, struct ARegion *ar);
+void            BKE_area_region_panels_free(struct ListBase *panels);
 void            BKE_screen_area_free(struct ScrArea *sa);
 /* Gizmo-maps of a region need to be freed with the region. Uses callback to avoid low-level call. */
 void BKE_region_callback_free_gizmomap_set(void (*callback)(struct wmGizmoMap *));

source/blender/blenkernel/intern/screen.c

@@ -361,7 +361,7 @@ void BKE_region_callback_free_gizmomap_set(void (*callback)(struct wmGizmoMap *)
 	region_free_gizmomap_callback = callback;
 }
 
-static void panel_list_free(ListBase *lb)
+void BKE_area_region_panels_free(ListBase *lb)
 {
 	Panel *pa, *pa_next;
 	for (pa = lb->first; pa; pa = pa_next) {
@@ -369,9 +369,10 @@ static void panel_list_free(ListBase *lb)
 		if (pa->activedata) {
 			MEM_freeN(pa->activedata);
 		}
-		panel_list_free(&pa->children);
-		MEM_freeN(pa);
+		BKE_area_region_panels_free(&pa->children);
 	}
+
+	BLI_freelistN(lb);
 }
 
 /* not region itself */
@@ -396,7 +397,7 @@ void BKE_area_region_free(SpaceType *st, ARegion *ar)
 		ar->v2d.tab_offset = NULL;
 	}
 
-	panel_list_free(&ar->panels);
+	BKE_area_region_panels_free(&ar->panels);
 
 	for (uilst = ar->ui_lists.first; uilst; uilst = uilst->next) {
 		if (uilst->dyn_data) {

source/blender/blenloader/intern/versioning_defaults.c

@@ -25,30 +25,24 @@
  *  \ingroup blenloader
  */
 
+#include "MEM_guardedalloc.h"
+
 #include "BLI_utildefines.h"
 #include "BLI_listbase.h"
 #include "BLI_math.h"
 #include "BLI_string.h"
 
-#include "DNA_camera_types.h"
-#include "DNA_brush_types.h"
-#include "DNA_freestyle_types.h"
-#include "DNA_lamp_types.h"
-#include "DNA_linestyle_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
 #include "DNA_userdef_types.h"
-#include "DNA_mesh_types.h"
-#include "DNA_material_types.h"
 #include "DNA_object_types.h"
 #include "DNA_workspace_types.h"
 
-#include "BKE_brush.h"
-#include "BKE_library.h"
+#include "BKE_layer.h"
 #include "BKE_main.h"
-#include "BKE_scene.h"
-#include "BKE_workspace.h"
+#include "BKE_node.h"
+#include "BKE_screen.h"
 
 #include "BLO_readfile.h"
 
@@ -86,7 +80,7 @@ void BLO_update_defaults_startup_blend(Main *bmain)
 		for (ScrArea *area = screen->areabase.first; area; area = area->next) {
 			for (ARegion *ar = area->regionbase.first; ar; ar = ar->next) {
 				/* Remove all stored panels, we want to use defaults (order, open/closed) as defined by UI code here! */
-				BLI_freelistN(&ar->panels);
+				BKE_area_region_panels_free(&ar->panels);
 
 				/* some toolbars have been saved as initialized,
 				 * we don't want them to have odd zoom-level or scrolling set, see: T47047 */
@@ -94,6 +88,53 @@ void BLO_update_defaults_startup_blend(Main *bmain)
 					ar->v2d.flag &= ~V2D_IS_INITIALISED;
 				}
 			}
+
+			if (area->spacetype == SPACE_FILE) {
+				SpaceFile *sfile = area->spacedata.first;
+
+				if (sfile->params) {
+					if (STREQ(screen->id.name, "SRDefault.003")) {
+						/* Shading. */
+						sfile->params->filter = FILE_TYPE_FOLDER |
+						                        FILE_TYPE_IMAGE;
+					}
+					else {
+						/* Video Editing. */
+						sfile->params->filter = FILE_TYPE_FOLDER |
+						                        FILE_TYPE_IMAGE |
+						                        FILE_TYPE_MOVIE |
+						                        FILE_TYPE_SOUND;
+					}
+				}
+			}
+		}
+	}
+
+	for (Scene *scene = bmain->scene.first; scene; scene = scene->id.next) {
+		BLI_strncpy(scene->r.engine, RE_engine_id_BLENDER_EEVEE, sizeof(scene->r.engine));
+
+		scene->r.cfra = 1.0f;
+
+		/* Don't enable compositing nodes. */
+		if (scene->nodetree) {
+			ntreeFreeTree(scene->nodetree);
+			MEM_freeN(scene->nodetree);
+			scene->nodetree = NULL;
+			scene->use_nodes = false;
+		}
+
+		/* Select only cube by default. */
+		for (ViewLayer *layer = scene->view_layers.first; layer; layer = layer->next) {
+			for (Base *base = layer->object_bases.first; base; base = base->next) {
+				if (STREQ(base->object->id.name + 2, "Cube")) {
+					base->flag |= BASE_SELECTED;
+				}
+				else {
+					base->flag &= ~BASE_SELECTED;
+				}
+			}
+
+			BKE_layer_collection_sync(scene, layer);
 		}
 	}
 }