Fix #22086 and #22125: crashes due to editmode being set on load/undo, fixes

are simple enough, though may still revert this feature if it turns out there
are more problems.

source/blender/blenloader/intern/readfile.c

@@ -3897,6 +3897,11 @@ static void direct_link_object(FileData *fd, Object *ob)
 	
 	/* weak weak... this was only meant as draw flag, now is used in give_base too */
 	ob->flag &= ~OB_FROMGROUP;
+
+	/* loading saved files with editmode enabled works, but for undo we like
+	   to stay in object mode during undo presses so keep editmode disabled */
+	if(fd->memfile)
+		ob->mode &= ~(OB_MODE_EDIT|OB_MODE_PARTICLE_EDIT);
 	
 	ob->disp.first=ob->disp.last= NULL;
 	

source/blender/windowmanager/intern/wm_files.c

@@ -369,6 +369,8 @@ int WM_read_homefile(bContext *C, wmOperator *op)
 //	undo_editmode_clear();
 	BKE_reset_undo();
 	BKE_write_undo(C, "original");	/* save current state */
+
+	ED_editors_init(C);
 	
 	WM_event_add_notifier(C, NC_WM|ND_FILEREAD, NULL);
 	CTX_wm_window_set(C, NULL); /* exits queues */